Nutrient recommendations for vegans in the Philippines

Updated 6 December 2023

Tagalog/Filipino     Other languages


The following recommendations are general guidelines for your orientation. You do not have to follow them to the smallest detail. Also, these recommendations are important in the long term rather than in the short term. For example, there will be no negative consequences for your health if you do not take a vitamin B12 supplement for a few days or weeks (or months).

You can also download my presentation "Vegan nutrition - which nutrients to watch out for" held at VegFest Pilipinas (Manila, 19 November 2023) here and you can watch the video here.


  • µg = mcg = microgram = one thousandth (1/1000) of a milligram
  • mg = milligram
  • g = gram
  • IU = international unit

1) Vitamin B12

Choose one of the following options [1–4,121]:

  • 2–5 µg twice per day (from fortified foods or a supplement) [5–11]
  • 10–50 µg per day from a supplement [6,9–14]
  • 2000–2500 µg per week from a supplement [7,10,11,15–17]
For example, you can take half a tablet of these once per day: "DEVA Vegan Multivitamin". Premenopausal women who have low iron status can take the left one (which contains iron; red label). Men and women with adequate iron status can take the iron-free version (orange label). Half a tablet contains 50 µg of vitamin B12.   
Deva Vegan Multivitamin (with iron)
Deva Vegan Multivitamin (without iron)

Or you could take half a tablet of these ("Piping Rock" or "Solgar", once per week. Half a tablet would contain 2500 µg of vitamin B12. These two brands are just examples.
Piping Rock 5000 µg vitamin B12
Solgar 5000 µg vitamin B12
These supplements are available on Shopee, for example.

In several malls in the Philippines, I've also seen a store called "LAC" (a company from Singapore) which sells all kinds of supplements, including a vitamin B12-only supplement which appears to be vegan and contains 1000 µg of vitamin B12 (cyanocobalamin) - so take two tablets (i.e., 2000 µg) once per week or one tablet (1000 µg) twice per week. One bottle costs 1110 PHP (as of December 2023) and contains 90 tablets.
LAC 1000 µg vitamin B12

Additional note: The Philippine Dietary Reference Intakes recommend 2.4 µg/day. But this number is based on an assumption of consuming vitamin B12 several times per day. For example, consuming 0.8 µg three times per day (0.8 x 3 = 2.4) would result in about 1.5 µg of vitamin B12 absorbed in the intestine - about the same amount that will be absorbed by consuming 10 µg once per day.

2) Calcium

Ideally, consume calcium-rich foods every day. In technical terms: you should achieve to consume at least 600 mg of calcium per day [2,18–27,122]. How? Choose at least one of the following options every day [121]. These foods will provide you with some extra calcium:

  • 1 glass of calcium fortified plant milk (for example soya milk; the label should state that it contains 120 mg of calcium per 100 ml – just like cow’s milk) [3,22,27–30]
  • other calcium fortified foods, for example juice, soya yoghurt, rolled oats, bread, ...) [22,27,29,31]
  • 1 cup of tofu made with calcium [22,27–30]
  • 1 to 2 cups of cooked dark green leafy vegetables, like:
    • pak choi (bok choy) [~90 mg calcium/100 g cooked]
    • Chinese flowering cabbage (choy sum) (Brassica rapa parachinensis)
    • moringa (malunggay, drumstick leaves, Moringa oleifera) [~190 mg mg calcium/100 g cooked]
    • kangkong (water spinach, river spinach, water convolvulus, Ipomoea aquatica) [~50 mg calcium/100 g cooked]
    • mustard leaves (mustasa, crispy mustard, mustard cabbage, Brassica juncea) [~110 mg calcium/100 g cooked]
    • Malabar spinach (alugbati, vine spinach, Basella alba) [~120 mg calcium/100 g cooked]
    • taro leaves (dahon ng taro) [~90-110 mg mg calcium/100 g cooked, the oxalate content of taro leaves seems to be variable - see here and here
    • okra [~10-90 mg calcium/100 g cooked][32] (Probably okra leaves are also a good source of calcium [~290 mg calcium/100 g cooked [33]]. Okra seems to be low in oxalic acid [32]. This is good because oxalic acid reduces the bioavailability of calcium.)
    • sweet potato leaves (dahon ng kamote) [~30 mg calcium/100 g cooked]
    • Napa cabbage (pechay baguio, wombok, Brassica rapa pekinensis) (or 2 to 3 cups raw Napa cabbage) [~30 mg calcium/100 g cooked]
    • broccoli (brokuli) [22,27,30]
    • kale
    • Collard greens (Spring greens)
    • turnip greens
    • vegetable fern (pako, Diplazium esculentumAthyrium esculentum) [~40–1300 mg calcium/100 g cooked.[34,35]] (Vegetable fern leaves seem to be low in oxalic acid.[36])
    • pumpkin leaves (dahon ng kalabasa) [~ 40 mg calcium/100 g cooked]
    • Jute mallow leaves (dahon ng saluyot, Corchorus olitorius) [~40 mg calcium/100 g cooked] 
    • bitter melon leaves (dahon ng ampalaya, Momordica charantia) [~40 mg calcium/100 g cooked]
    • rapini (broccoli rabe, Brassica rapa Pangkat Ruvo)
    • dandelion leaves
    • nettle leaves
While spinach and chard are rich in calcium they are also rich in oxalic acid, which decreases calcium bioavailability. So, spinach and chard are not good calcium sources.
  • calcium rich water/mineral water which should provide at least 300 mg calcium per day – check the label [37,38]
  • ½ cup of dried figs + 3 oranges [22]

Additional note: In many countries, a calcium intake of around 1000 mg/day is recommended. The Philippine Dietary Reference Intakes (PDRI) estimate the average calcium requirement to be 600 mg/day, while the calcium intake recommendation (which is the average requirement + a safety margin) is 750-800 mg/day.

3) Vitamin D

In the Philippines you can get enough vitamin D from sunshine – but only if you regularly expose your skin to sunshine. Very generally speaking, about 10 minutes (midday) to 30 minutes (morning or evening) of direct sunshine on your skin per day should be sufficient. Or you can get more sunshine less often. Avoid sunburn.

You can also take a vitamin D supplement instead – but do not avoid the sun completely.
If you take a vitamin D supplement, take:
  • ~10–25 µg (~400–1000 IU) vitamin D per day [2,3,22,27,47–55]
Do not take more than 50 µg (2000 IU) per day, unless a medical doctor advises you to do so [122]

The Philippines are located at a latitude of around 18° north to 6° north. This close to the equator your body can produce vitamin D from sunshine all year round [56].

Additional note: The Philippine Dietary Reference Intakes recommend – "in the absence of adequate exposure to sunlight" – an intake of ... 
  • 5 µg/day for adults under 50 years, ...
  • 10 µg/day for adults between 50 and 60 years, ...
  • and 15 µg/day for adults 60 years and older [122].

4) Iodine

Choose one of the following options (or a mix of these options) [2,3,49,57–65,121]:
  • 70–150 µg of iodine per day from a supplement – no more than 200 µg/day
  • Seaweed – such as guso (Eucheuma cottonii), lato (arosep, sea grapes, green “caviar”, Caulerpa lentillifera), nori, or (well-rinsed) wakame – several times per week
100 µg of iodine can be found in:
    • ~50–200 g of fresh guso (Guso seems to be relatively low in sodium – which is good.) [66–69] ... or ...
    • ~50–200 g of fresh lato (Lato seems to be relatively high in sodium – avoid eating large amounts of lato especially if you have high blood pressure.) [68,70] ... or ...
    • ~1–2 sheets of nori (~ 2.5 g) (Nori seems to be low in sodium – which is good.) ... or ...
    • ~0.5–30 g of dried wakame (Use small amounts – like a small handful – rinse-well, steam or boil, and discard the water. Wakame is likely also high in sodium.)
  • Iodized salt (1 teaspoon of iodized salt contains 40–240 µg of iodine – check the label [71–73].)
Avoid excessive salt intake, especially if you have high blood pressure. The Philippine Dietary Reference Intakes recommend to consume less than 2000 mg of sodium (5 g of salt) per day [122]. All other foods you eat also contain smaller amounts of iodine.

Additional note: The Philippine Dietary Reference Intakes recommend an iodine intake of 150 µg/day, and the upper level for long-term intake is 1100 µg/day.

5) Omega-3 fatty acids

Choose one of these options every day [18,29,74–79,121]. The following recommendations are for men – who generally consume more calories. For women a little less is sufficient.
  • 1–2 tablespoons of chia seeds [79–82]
  • ~10 walnuts (=20 walnut halves; ~40 g) [74]
  • 1–2 teaspoons of flaxseed oil [74]
  • 2 tablespoons of ground flaxseeds [74,83,84]
  • 1–2 tablespoons of hemp seed oil [74]
  • ¼ cup of hemp seeds or 1–2 tablespoons of shelled hemp seeds
  • 2–3 tablespoons of canola oil [74]
Additional note: The Philippine Dietary Reference Intakes recommend an alpha-linolenic acid (omega-3 fatty acid found in the plant foods listed above) intake of 0.5% of calories - just like in many other countries. The above recommendations are for 1% of calories and are meant for people who do not consume the so-called long-chain omega-3-fatty acids (found in fish and some microalgae-based supplements; see below). 

Optionally (there isn’t much evidence for recommending this for the average vegan):
Use half of the above recommendations – and add a vegan EPA/DHA supplement:
  • 200–300 mg EPA/DHA every two or three days (or every day if you like) [74,77–79,85–87,121]

6) Iron

Eat legumes daily or almost daily [25,88,89,121].

Iron deficiency is very uncommon in men, including vegan men.

Additional tips:
  • Consuming vitamin C at the same time as iron rich foods increases the absorption of iron from plant sources [88,90–93].
  • Drinking coffee or tea with meals lowers the absorption of iron [90–94].
  • Cooking tomato sauce (or other sauces that are slightly acidic) in cast iron cookware increases the amount of iron in the sauce [93–96].
Additional note: The Philippine Dietary Reference Intakes (PDRI) recommend an intake of 12 mg/day for men, 28 mg/day for premenopausal women (because of blood loss during menstruation), and 10 mg/day for postmenopausal women [122]. The upper limit for long-term intake is 45 mg/day. The PDRI document states: "Requirements cannot be met by usual diet alone. Intake of iron-rich and iron-fortified foods and the use of supplements are recommended, if necessary." For many vegan premenopausal women iron requirements can likely be met by diet (especially legumes and dark leafy greens) alone. But some women require supplements, including women who eat meat.

7) Zinc

Eat legumes, nuts and seeds daily or almost daily [2,29,97,98,121].

Additional note: The Philippine Dietary Reference Intakes (PDRI) recommend an intake of 7 mg/day for men and 5 mg/day for women [122]. These recommendations are a bit lower than in some other countries (e.g., the United States). The upper limit for long-term intake in the Philippines is 45 mg/day (in the United States it's 40 mg/day). Many zinc supplements contain 50 mg in one single tablet. So, it's best not to take a whole 50 mg tablet daily. Instead you can just bite a small piece of the tablet of - if you want to take zinc tablets for some reason.

8) Selenium

In the Philippines the soils are generally high in selenium [99]. Therefore, vegans in the Philippines do not have to be concerned about low selenium intakes [99,100].

The seaweeds lato and guso are also rich in selenium.

Vegans who live in the Unites States or Canada do not have to be concerned about selenium [101–104]. Vegans who live in Europe should (ideally) pay attention to selenium [49,58,105–116].

Additional note: The Philippine Dietary Reference Intakes (PDRI) recommend a selenium intake of 38 µg/day for men and 33 µg/day for women [122]. The upper limit for long-term selenium intake in the Philippines is 400 µg/day. Be sure to be aware that the unit here is "µg" (micrograms), NOT "mg" (milligrams). Large of amounts of selenium can be very toxic.

9) Vitamin A

Eat plenty of dark green vegetables, orange coloured fruits and orange coloured vegetables [3,49,117]. Great beta-carotene (provitamin A) sources are, for example: cooked carrots, carrot juice, pumpkin, orange coloured sweet potatoes, any dark green leafy vegetable – and orange coloured fruits like mangoes and papayas as well as red bell peppers.

Additional note: The Philippine Dietary Reference Intakes (PDRI) recommend an intake of 700 µgRE/day for men and 600 µgRE/day for women [122]. The unit "µgRE" stands for micrograms of retinol equivalents. The upper limit for long-term intake is 3000 µgRE/day - this upper level is only relevant for supplements or certain animal-source foods. Provitamin A in plants is non-toxic. This technical information is not something that you need to pay attention to as long as you regularly eat good sources of provitamin A (see above). 

10) Protein

Eat legumes, whole grains, nuts and seeds [3,118–120,121].

Eat legumes (mung beans, soya milk, tofu, beans, peas, peanuts, peanut butter, soya flour) or pistachios or hemp seeds or quinoa or amaranth daily.

Eat enough calories. Most vegans eat enough calories. But if you don’t eat enough calories your body will use the protein you eat as calories, and you might end up with too little protein and you might lose muscle mass. Not getting enough protein may also harm your bones.

Additional note: The Philippine Dietary Reference Intakes (PDRI) recommend a protein intake of 71 g/day for men and 62 g/day for women [122] - this is not something that you need to pay attention to if you eat legumes daily.

Healthy vegan lifestyle 🍒🍉🍈🍑🍅🍋🍎🍌🍆


1. Johnsen, J.B.; Fønnebø, V. Vitamin B12-mangel ved strengt vegetabilsk kosthold. Hvorfor følger noen et slikt kosthold, og hva vil de gjøre ved B12-mangel? Abstract. Tidsskr. Nor. Laegeforen. 1991, 111, 62–64.

2. Schüpbach, R.; Wegmüller, R.; Berguerand, C.; Bui, M.; Herter-Aeberli, I. Micronutrient status and intake in omnivores, vegetarians and vegans in Switzerland. Eur. J. Nutr. 2017, 56, 283–293, doi:10.1007/s00394-015-1079-7.

3. Sobiecki, J.G.; Appleby, P.N.; Bradbury, K.E.; Key, T.J. High compliance with dietary recommendations in a cohort of meat eaters, fish eaters, vegetarians, and vegans: results from the European Prospective Investigation into Cancer and Nutrition-Oxford study. Nutr. Res. 2016, 36, 464–477, doi:10.1016/j.nutres.2015.12.016.

4. Woo, K.S.; Kwok, T.C.Y.; Celermajer, D.S. Vegan diet, subnormal vitamin B-12 status and cardiovascular health. Nutrients 2014, 6, 3259–3273, doi:10.3390/nu6083259.

5. Bor, M.V.; Castel-Roberts, K.M. von; Kauwell, G.P.; Stabler, S.P.; Allen, R.H.; Maneval, D.R.; Bailey, L.B.; Nexo, E. Daily intake of 4 to 7 microg dietary vitamin B-12 is associated with steady concentrations of vitamin B-12-related biomarkers in a healthy young population. Am. J. Clin. Nutr. 2010, 91, 571–577, doi:10.3945/ajcn.2009.28082.

6. Carmel, R. Cobalamin (Vitamin B12). In Modern nutrition in health and disease, 10th edition; Shils ME, Shike M, Ross AC, Caballero B, Cousins RJ, Eds.; Lippincott Williams & Wilkins: Philadelphia, 2006; pp 482–497.

7. IOM. Institute of Medicine (IOM): Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline; Washington (DC), 1998, ISBN 0309064112.

8. Luhby, A.L.; Cooperman, J.M.; Donnenfeld, AM: Herrero, JM; Teller, D.N.; Wenig, J.B. Observations on transfer of vitamin B12 from mother to fetus and newborn. Am J Dis Child 1958, 96, 532–533.

9. Haddad, E.H.; Berk, L.S.; Kettering, J.D.; Hubbard, R.W.; Peters, W.R. Dietary intake and biochemical, hematologic, and immune status of vegans compared with nonvegetarians. Am. J. Clin. Nutr. 1999, 70, 586S-593S.

10. Heyssel, R.M.; Bozian, R.C.; Darby, W.J.; Bell, M.C. Vitamin B12 turnover in man. The assimilation of vitamin B12 from natural foodstuff by man and estimates of minimal daily dietary requirements. Am. J. Clin. Nutr. 1966, 18, 176–184.

11. Obeid, R.; Fedosov, S.N.; Nexo, E. Cobalamin coenzyme forms are not likely to be superior to cyano- and hydroxyl-cobalamin in prevention or treatment of cobalamin deficiency. Mol. Nutr. Food Res. 2015, 59, 1364–1372, doi:10.1002/mnfr.201500019.

12. Adams, J.F.; Ross, S.K.; Mervyn, L.; Boddy, K.; King, P. Absorption of cyanocobalamin, coenzyme B 12 , methylcobalamin, and hydroxocobalamin at different dose levels. Scand. J. Gastroenterol. 1971, 6, 249–252.

13. Carmel, R. Mandatory fortification of the food supply with cobalamin: an idea whose time has not yet come. J. Inherit. Metab. Dis. 2011, 34, 67–73, doi:10.1007/s10545-010-9150-2.

14. Deshmukh, U.S.; Joglekar, C.V.; Lubree, H.G.; Ramdas, L.V.; Bhat, D.S.; Naik, S.S.; Hardikar, P.S.; Raut, D.A.; Konde, T.B.; Wills, A.K.; et al. Effect of physiological doses of oral vitamin B12 on plasma homocysteine: a randomized, placebo-controlled, double-blind trial in India. Eur. J. Clin. Nutr. 2010, 64, 495–502, doi:10.1038/ejcn.2010.15.

15. Berlin, H.; Berlin, R.; Brante, G. Oral treatment of pernicious anemia with high doses of vitamin B12 without intrinsic factor. Acta Med. Scand. 1968, 184, 247–258.

16. Donaldson, M.S. Metabolic vitamin B12 status on a mostly raw vegan diet with follow-up using tablets, nutritional yeast, or probiotic supplements. Ann. Nutr. Metab. 2000, 44, 229–234.

17. Gomollón, F.; Gargallo, C.J.; Muñoz, J.F.; Vicente, R.; Lue, A.; Mir, A.; García-Alvarado, M.; Gracia, M.; García-López, S. Oral cyanocobalamin is effective in the treatment of vitamin B12 deficiency in Crohn’s disease. Nutrients 2017, 9, doi:10.3390/nu9030308.

18. Appleby, P.N.; Key, T.J. The long-term health of vegetarians and vegans. Proc. Nutr. Soc. 2016, 75, 287–293, doi:10.1017/S0029665115004334.

19. Appleby, P.; Roddam, A.; Allen, N.; Key, T. Comparative fracture risk in vegetarians and nonvegetarians in EPIC-Oxford. Eur. J. Clin. Nutr. 2007, 61, 1400–1406, doi:10.1038/sj.ejcn.1602659.

20. Dyett, P.; Rajaram, S.; Haddad, E.H.; Sabate, J. Evaluation of a validated food frequency questionnaire for self-defined vegans in the United States. Nutrients 2014, 6, 2523–2539, doi:10.3390/nu6072523.

21. Fang, A.; Li, K.; Guo, M.; He, J.; Li, H.; Shen, X.; Song, J. Long-term low intake of dietary calcium and fracture risk in older adults with plant-based diet: a longitudinal study from the China Health and Nutrition Survey. J. Bone Miner. Res. 2016, 31, 2016–2023, doi:10.1002/jbmr.2874.

22. Mangels, A.R. Bone nutrients for vegetarians. Am. J. Clin. Nutr. 2014, 100 Suppl 1, 469S-75S, doi:10.3945/ajcn.113.071423.

23. Morales-Torres, J.; Gutiérrez-Ureña, S. The burden of osteoporosis in Latin America. Osteoporos. Int. 2004, 15, 625–632, doi:10.1007/s00198-004-1596-3.

24. Nachshon, L.; Katz, Y. [The importance of “milk bones” to “wisdom bones” - cow milk and bone health - lessons from milk allergy patients]. Abstract. Harefuah 2016, 155, 163-6, 195-6.

25. Rizzo, N.S.; Jaceldo-Siegl, K.; Sabate, J.; Fraser, G.E. Nutrient profiles of vegetarian and nonvegetarian dietary patterns. J. Acad. Nutr. Diet. 2013, 113, 1610–1619, doi:10.1016/j.jand.2013.06.349.

26. Thorpe, D.L.; Knutsen, S.F.; Beeson, W.L.; Rajaram, S.; Fraser, G.E. Effects of meat consumption and vegetarian diet on risk of wrist fracture over 25 years in a cohort of peri- and postmenopausal women. Public Health Nutr. 2008, 11, 564–572, doi:10.1017/S1368980007000808.

27. Tucker, K.L. Vegetarian diets and bone status. Am. J. Clin. Nutr. 2014, 100 Suppl 1, 329S–35S, doi:10.3945/ajcn.113.071621.

28. Messina, V.; Messina, M. Soy products as sources of calcium in the diets of Chinese americans. J. Am. Diet. Assoc. 2010, 110, 1812-3; author reply 1813, doi:10.1016/j.jada.2010.10.020.

29. Reid, M.A.; Marsh, K.A.; Zeuschner, C.L.; Saunders, A.V.; Baines, S.K. Meeting the nutrient reference values on a vegetarian diet. Med. J. Aust. 2013, 199, S33-40.

30. Weaver, C.M.; Proulx, W.R.; Heaney, R. Choices for achieving adequate dietary calcium with a vegetarian diet. Am. J. Clin. Nutr. 1999, 70, 543S-548S.

31. de Abajo, Francisco J. de; Rodríguez-Martín, S.; Rodríguez-Miguel, A.; Gil, M.J. Risk of Ischemic Stroke Associated With Calcium Supplements With or Without Vitamin D: A Nested Case-Control Study. J. Am. Heart Assoc. 2017, 6, doi:10.1161/JAHA.117.005795.

32. Gemede, H.F.; Haki, G.D.; Beyene, F.; Woldegiorgis, A.Z.; Rakshit, S.K. Proximate, mineral, and antinutrient compositions of indigenous Okra (Abelmoschus esculentus) pod accessions: implications for mineral bioavailability. Food Sci. Nutr. 2016, 4, 223–233, doi:10.1002/fsn3.282.

33. Boukari, I.; Shier, N.W.; Fernandez R., X.E.; Frisch, J.; Watkins, B.A.; Pawloski, L.; Fly, A.D. Calcium Analysis of Selected Western African Foods. Journal of Food Composition and Analysis 2001, 14, 37–42, doi:10.1006/jfca.2000.0967.

34. Greeshma, A.A.; Sridhar, K.R. Nutraceutical and Bioactive Significance of Ferns with Emphasis on the Medicinal Fern Diplazium. In Medically Important Plant Biomes: Source of Secondary Metabolites; Egamberdieva, Ed.; Springer Singapore: Singapore, 2019; pp 115–131, ISBN 978-981-13-9565-9.

35. Pradhan, S.; Manivannan, S.; Tamang, J.P. Chemical composition of some underutilized green leafy vegetables of Sonitpur district of Assam, India. Journal of Scientific and Industrial Research 2015, 74.

36. Saha, J.; Biswal, A.K.; Deka, S.C. Chemical composition of some underutilized green leafy vegetables of Sonitpur district of Assam, India. International Food Research Journal 2015, 22, 1466–1473.

37. Böhmer, H.; Müller, H.; Resch, K.L. Calcium supplementation with calcium-rich mineral waters: a systematic review and meta-analysis of its bioavailability. Osteoporos. Int. 2000, 11, 938–943, doi:10.1007/s001980070032.

38. Vitoria, I.; Maraver, F.; Ferreira-Pêgo, C.; Armijo, F.; Moreno Aznar, L.; Salas-Salvadó, J. The calcium concentration of public drinking waters and bottled mineral waters in Spain and its contribution to satisfying nutritional needs. Nutr. Hosp. 2014, 30, 188–199, doi:10.3305/nh.2014.30.1.7491.

39. Bressani, R.; Turcios, J.C.; Colmenares de Ruiz, A.S.; Palomo, P.P. de. Effect of processing conditions on phytic acid, calcium, iron, and zinc contents of lime-cooked maize. J. Agric. Food Chem. 2004, 52, 1157–1162, doi:10.1021/jf030636k.

40. Hambidge, K.M.; Krebs, N.F.; Westcott, J.L.; Sian, L.; Miller, L.V.; Peterson, K.L.; Raboy, V. Absorption of calcium from tortilla meals prepared from low-phytate maize. Am. J. Clin. Nutr. 2005, 82, 84–87.

41. Islas-Rubio, A.R.; La Barca, A.M.C. de; Molina-Jacott, L.E.; Del Carmen Granados-Nevárez, M.; Vasquez-Lara, F. Development and evaluation of a nutritionally enhanced multigrain tortilla snack. Plant Foods Hum. Nutr. 2014, 69, 128–133, doi:10.1007/s11130-014-0408-y.

42. Monárrez-Espino, J.; Béjar-Lío, G.I.; Vázquez-Mendoza, G. Adecuación de la dieta servida a escolares en albergues indigenistas de la Sierra Tarahumara, México. Salud Pública de México 2010, 52, 23–29.

43. Rosado, J.L.; López, P.; Morales, M.; Munoz, E.; Allen, L.H. Bioavailability of energy, nitrogen, fat, zinc, iron and calcium from rural and urban Mexican diets. Br. J. Nutr. 1992, 68, 45–58.

44. Pappa, M.R.; Palomo, P.P. de; Bressani, R. Effect of lime and wood ash on the nixtamalization of maize and tortilla chemical and nutritional characteristics. Plant Foods Hum. Nutr. 2010, 65, 130–135, doi:10.1007/s11130-010-0162-8.

45. Rosado, J.L.; Díaz, M.; Rosas, A.; Griffit, I.; García, O.P. Calcium absorption from corn tortilla is relatively high and is dependent upon calcium content and liming in Mexican women. J. Nutr. 2005, 135, 2578–2581.

46. Serna-Saldivar, S.O.; Amaya Guerra, C.A.; Herrera Macias, P.; Melesio Cuellar, J.L.; Preciado Ortiz, R.E.; Terron Ibarra, A.D.; Vazquez Carrillo, G. Evaluation of the lime-cooking and tortilla making properties of quality protein maize hybrids grown in Mexico. Plant Foods Hum. Nutr. 2008, 63, 119–125, doi:10.1007/s11130-008-0080-1.

47. Holick, M.F. The vitamin D deficiency pandemic: approaches for diagnosis, treatment and prevention. Rev. Endocr. Metab. Disord. 2017, doi:10.1007/s11154-017-9424-1.

48. Ho-Pham, L.T.; Vu, B.Q.; Lai, T.Q.; Nguyen, N.D.; Nguyen, T.V. Vegetarianism, bone loss, fracture and vitamin D: a longitudinal study in Asian vegans and non-vegans. Eur. J. Clin. Nutr. 2012, 66, 75–82, doi:10.1038/ejcn.2011.131.

49. Kristensen, N.B.; Madsen, M.L.; Hansen, T.H.; Allin, K.H.; Hoppe, C.; Fagt, S.; Lausten, M.S.; Gøbel, R.J.; Vestergaard, H.; Hansen, T.; et al. Intake of macro- and micronutrients in Danish vegans. Nutr. J. 2015, 14, 115, doi:10.1186/s12937-015-0103-3.

50. Outila, T.A.; Kärkkäinen, M.U.; Seppänen, R.H.; Lamberg-Allardt, C.J. Dietary intake of vitamin D in premenopausal, healthy vegans was insufficient to maintain concentrations of serum 25-hydroxyvitamin D and intact parathyroid hormone within normal ranges during the winter in Finland. J. Am. Diet. Assoc. 2000, 100, 434–441, doi:10.1016/S0002-8223(00)00134-6.

51. Plehwe, W.E.; Carey, R.P.L. Spinal surgery and severe vitamin D deficiency. Med. J. Aust. 2002, 176, 438–439.

52. Smith, T.J.; Tripkovic, L.; Damsgaard, C.T.; Mølgaard, C.; Ritz, C.; Wilson-Barnes, S.L.; Dowling, K.G.; Hennessy, Á.; Cashman, K.D.; Kiely, M.; et al. Estimation of the dietary requirement for vitamin D in adolescents aged 14-18 y: a dose-response, double-blind, randomized placebo-controlled trial. Am. J. Clin. Nutr. 2016, 104, 1301–1309, doi:10.3945/ajcn.116.138065.

53. Ustianowski, A.; Shaffer, R.; Collin, S.; Wilkinson, R.J.; Davidson, R.N. Prevalence and associations of vitamin D deficiency in foreign-born persons with tuberculosis in London. J. Infect. 2005, 50, 432–437, doi:10.1016/j.jinf.2004.07.006.

54. Vidailhet, M.; Mallet, E.; Bocquet, A.; Bresson, J.-L.; Briend, A.; Chouraqui, J.-P.; Darmaun, D.; Dupont, C.; Frelut, M.-L.; Ghisolfi, J.; et al. Vitamin D: still a topical matter in children and adolescents. A position paper by the Committee on Nutrition of the French Society of Paediatrics. Arch. Pediatr. 2012, 19, 316–328, doi:10.1016/j.arcped.2011.12.015.

55. Dewansingh, P.; Melse-Boonstra, A.; Krijnen, W.P.; van der Schans, C.P.; Jager-Wittenaar, H.; van den Heuvel, E.G.H.M. Supplemental protein from dairy products increases body weight and vitamin D improves physical performance in older adults: A systematic review and meta-analysis. Nutr. Res. 2018, 49, 1–22, doi:10.1016/j.nutres.2017.08.004.

56. Jäpelt, R.B.; Jakobsen, J. Vitamin D in plants: a review of occurrence, analysis, and biosynthesis. Front. Plant Sci. 2013, 4, 136, doi:10.3389/fpls.2013.00136.

57. Davidsson, L. Are vegetarians an ‘at risk group’ for iodine deficiency? Br. J. Nutr. 1999, 81, 3–4.

58. Elorinne, A.-L.; Alfthan, G.; Erlund, I.; Kivimäki, H.; Paju, A.; Salminen, I.; Turpeinen, U.; Voutilainen, S.; Laakso, J. Food and nutrient intake and nutritional status of Finnish vegans and non-vegetarians. PLoS ONE 2016, 11, e0148235, doi:10.1371/journal.pone.0148235.

59. Fields, C.; Dourson, M.; Borak, J. Iodine-deficient vegetarians: a hypothetical perchlorate-susceptible population? Regul. Toxicol. Pharmacol. 2005, 42, 37–46, doi:10.1016/j.yrtph.2005.01.001.

60. Krajcovicová-Kudlácková, M.; Bucková, K.; Klimes, I.; Seboková, E. Iodine deficiency in vegetarians and vegans. Ann. Nutr. Metab. 2003, 47, 183–185.

61. Leung, A.M.; Lamar, A.; He, X.; Braverman, L.E.; Pearce, E.N. Iodine status and thyroid function of Boston-area vegetarians and vegans. J. Clin. Endocrinol. Metab. 2011, 96, E1303-7, doi:10.1210/jc.2011-0256.

62. Lightowler, H.J.; Davies, G.J. Assessment of iodine intake in vegans: weighed dietary record vs duplicate portion technique. Eur. J. Clin. Nutr. 2002, 56, 765–770, doi:10.1038/sj.ejcn.1601392.

63. Lightowler, H.J.; Davies, G.J. Iodine intake and iodine deficiency in vegans as assessed by the duplicate-portion technique and urinary iodine excretion. Br. J. Nutr. 1998, 80, 529–535.

64. Kanaka, C.; Schütz, B.; Zuppinger, K.A. Risks of alternative nutrition in infancy: a case report of severe iodine and carnitine deficiency. Eur. J. Pediatr. 1992, 151, 786–788.

65. Remer, T.; Neubert, A.; Manz, F. Increased risk of iodine deficiency with vegetarian nutrition. Br. J. Nutr. 1999, 81, 45–49.

66. Namvar, F.; Mohamed, S.; Fard, S.G.; Behravan, J.; Mustapha, N.M.; Alitheen, N.B.M.; Othman, F. Polyphenol-rich seaweed (Eucheuma cottonii) extract suppresses breast tumour via hormone modulation and apoptosis induction. Food Chem. 2012, 130, 376–382, doi:10.1016/j.foodchem.2011.07.054.

67. Firdaus, M.; Yahya; Raditya Hardany Nugraha, G.; Dwi Utari, D. Fortification of seaweed (Eucheuma cottonii ) flour on nutrition, iodine, and glycemic index of pasta. IOP Conf. Ser.: Earth Environ. Sci. 2017, 89, 12011, doi:10.1088/1755-1315/89/1/012011.

68. Matanjun, P.; Mohamed, S.; Mustapha, N.M.; Muhammad, K. Nutrient content of tropical edible seaweeds, Eucheuma cottonii, Caulerpa lentillifera and Sargassum polycystum. J. Appl. Phycol. 2009, 21, 75–80, doi:10.1007/s10811-008-9326-4.

69. Dulanlebit, Y.H.; Hattu, N.; Bora, G. Bioconcentration analysis of iodine species in seaweed (Eucheuma cottonii) from Maluku marine as alternative food source. International Journal of Chemical and Molecular Engineering 2020, 14.

70. Ratana-arporn, P.; Chirapart, A. Nutritional evaluation of tropical green seaweeds Caulerpa lentillifera and Ulva reticulata. Kasetsart Journal - Natural Science 2006.

71. García-Casal, M.N.; Landaeta, M.; Adrianza de Baptista, G.; Murillo, C.; Rincón, M.; Bou Rached, L.; Bilbao, A.; Anderson, H.; García, D.; Franquiz, J.; et al. Valores de referencia de hierro, yodo, zinc, selenio, cobre, molibdeno, vitamina C, vitamina E, vitamina K, carotenoides y polifenoles para la población venezolana. Arch. Latinoam. Nutr. 2013, 63, 338–361.

72. Rohner, F.; Zimmermann, M.; Jooste, P.; Pandav, C.; Caldwell, K.; Raghavan, R.; Raiten, D.J. Biomarkers of nutrition for development—iodine review. J. Nutr. 2014, 144, 1322S–1342S, doi:10.3945/jn.113.181974.

73. Zimmermann, M.B.; Andersson, M. Assessment of iodine nutrition in populations: past, present, and future. Nutr. Rev. 2012, 70, 553–570, doi:10.1111/j.1753-4887.2012.00528.x.

74. Davis, B.C.; Kris-Etherton, P.M. Achieving optimal essential fatty acid status in vegetarians: current knowledge and practical implications. Am. J. Clin. Nutr. 2003, 78, 640S-646S.

75. Domenichiello, A.F.; Chen, C.T.; Trepanier, M.-O.; Stavro, P.M.; Bazinet, R.P. Whole body synthesis rates of DHA from α-linolenic acid are greater than brain DHA accretion and uptake rates in adult rats. J. Lipid Res. 2014, 55, 62–74, doi:10.1194/jlr.M042275.

76. Fayet-Moore, F.; Baghurst, K.; Meyer, B.J. Four models including fish, seafood, red meat and enriched foods to achieve Australian dietary recommendations for n-3 LCPUFA for all life-stages. Nutrients 2015, 7, 8602–8614, doi:10.3390/nu7105413.

77. Harris, W.S. Achieving optimal n-3 fatty acid status: the vegetarian’s challenge… or not. Am. J. Clin. Nutr. 2014, 100 Suppl 1, 449S–52S, doi:10.3945/ajcn.113.071324.

78. Sanders, T.A.B. DHA status of vegetarians. Prostaglandins Leukot. Essent. Fatty Acids 2009, 81, 137–141, doi:10.1016/j.plefa.2009.05.013.

79. Saunders, A.V.; Davis, B.C.; Garg, M.L. Omega-3 polyunsaturated fatty acids and vegetarian diets. Med. J. Aust. 2013, 199, S22-6.

80. EFSA. Opinion on the safety of ‘Chia seeds (Salvia hispanica L.) and ground whole Chia seeds’ as a food ingredient. EFSA Journal 2009, 7, 996, doi:10.2903/j.efsa.2009.996.

81. Mohd Ali, N.; Yeap, S.K.; Ho, W.Y.; Beh, B.K.; Tan, S.W.; Tan, S.G. The promising future of chia, Salvia hispanica L. J. Biomed. Biotechnol. 2012, 2012, 171956, doi:10.1155/2012/171956.

82. Ullah, R.; Nadeem, M.; Khalique, A.; Imran, M.; Mehmood, S.; Javid, A.; Hussain, J. Nutritional and therapeutic perspectives of Chia (Salvia hispanica L.): a review. J. Food Sci. Technol. 2016, 53, 1750–1758, doi:10.1007/s13197-015-1967-0.

83. Demark-Wahnefried, W.; Polascik, T.J.; George, S.L.; Switzer, B.R.; Madden, J.F.; Ruffin, M.T.; Snyder, D.C.; Owzar, K.; Hars, V.; Albala, D.M.; et al. Flaxseed supplementation (not dietary fat restriction) reduces prostate cancer proliferation rates in men presurgery. Cancer Epidemiol. Biomarkers Prev. 2008, 17, 3577–3587, doi:10.1158/1055-9965.EPI-08-0008.

84. Hackshaw-McGeagh, L.E.; Perry, R.E.; Leach, V.A.; Qandil, S.; Jeffreys, M.; Martin, R.M.; Lane, J.A. A systematic review of dietary, nutritional, and physical activity interventions for the prevention of prostate cancer progression and mortality. Cancer Causes Control 2015, 26, 1521–1550, doi:10.1007/s10552-015-0659-4.

85. Cottin, S.C.; Sanders, T.A.; Hall, W.L. The differential effects of EPA and DHA on cardiovascular risk factors. Proc. Nutr. Soc. 2011, 70, 215–231, doi:10.1017/S0029665111000061.

86. Geppert, J.; Kraft, V.; Demmelmair, H.; Koletzko, B. Microalgal docosahexaenoic acid decreases plasma triacylglycerol in normolipidaemic vegetarians: a randomised trial. Br. J. Nutr. 2006, 95, 779–786.

87. Sarter, B.; Kelsey, K.S.; Schwartz, T.A.; Harris, W.S. Blood docosahexaenoic acid and eicosapentaenoic acid in vegans: associations with age and gender and effects of an algal-derived omega-3 fatty acid supplement. Clin. Nutr. 2015, 34, 212–218, doi:10.1016/j.clnu.2014.03.003.

88. Waldmann, A.; Koschizke, J.W.; Leitzmann, C.; Hahn, A. Dietary iron intake and iron status of German female vegans: results of the German vegan study. Ann. Nutr. Metab. 2004, 48, 103–108, doi:10.1159/000077045.

89. Gorczyca, D.; Prescha, A.; Szeremeta, K.; Jankowski, A. Iron status and dietary iron intake of vegetarian children from Poland. Ann. Nutr. Metab. 2013, 62, 291–297, doi:10.1159/000348437.

90. Craig, W.J. Iron status of vegetarians. Am. J. Clin. Nutr. 1994, 59, 1233S-1237S.

91. Gibson, R.S.; Heath, A.-L.M.; Szymlek-Gay, E.A. Is iron and zinc nutrition a concern for vegetarian infants and young children in industrialized countries? Am. J. Clin. Nutr. 2014, 100 Suppl 1, 459S–68S, doi:10.3945/ajcn.113.071241.

92. Hurrell, R.; Egli, I. Iron bioavailability and dietary reference values. Am. J. Clin. Nutr. 2010, 91, 1461S–1467S, doi:10.3945/ajcn.2010.28674F.

93. Hunt, J.R. Moving toward a plant-based diet: are iron and zinc at risk? Nutr. Rev. 2002, 60, 127–134.

94. Hunt, J.R. Bioavailability of iron, zinc, and other trace minerals from vegetarian diets. Am. J. Clin. Nutr. 2003, 78, 633S-639S.

95. Quintaes, K.D.; Amaya-Farfan, J.; Tomazini, F.M.; Morgano, M.A.; Almeyda Hajisa, N.M. de; Neto, J.T. Mineral migration and influence of meal preparation in iron cookware on the iron nutritional status of vegetarian students. Ecology of Food and Nutrition 2007, 46, 125–141, doi:10.1080/03670240701285079.

96. Sanders, T.A. Vegetarian diets. In Human nutrition, 12th edition; Geissler CA, Powers HJ, Eds.; Churchill Livingstone Elsevier: Edinburgh, 2012; pp 355–363.

97. Saunders, A.V.; Craig, W.J.; Baines, S.K. Zinc and vegetarian diets. Med. J. Aust. 2013, 199, S17-21.

98. Ball, M.J.; Ackland, M.L. Zinc intake and status in Australian vegetarians. Br. J. Nutr. 2000, 83, 27–33.

99. Gibson, R.S.; Bailey, K.B.; Romano, A.B.A.; Thomson, C.D. Plasma selenium concentrations in pregnant women in two countries with contrasting soil selenium levels. J. Trace Elem. Med. Biol. 2011, 25, 230–235, doi:10.1016/j.jtemb.2011.10.001.

100. Mak, T.-N.; Angeles-Agdeppa, I.; Tassy, M.; Capanzana, M.V.; Offord, E.A. The Nutritional Impact of Milk Beverages in Reducing Nutrient Inadequacy among Children Aged One to Five Years in the Philippines: A Dietary Modelling Study. Nutrients 2020, 12, doi:10.3390/nu12113330.

101. Combs, G. F.; Combs, S.B. The role of selenium in nutrition; Academic Press: Orlando, 1986.

102. Combs, G.F. Selenium in global food systems. Br. J. Nutr. 2001, 85, 517–547.

103. Mondragón, M.C.; Jaffé, W.G. Consumo de selenio en la ciudad de Caracas en comparación con el de otras ciudades del mundo. Abstract. Arch. Latinoam. Nutr. 1976, 26, 343–352.

104. Surai, P.F. Selenium in nutrition and health; Nottingham University Press: Nottingham, 2006.

105. Hildbrand, S.M. Bedeutung des Jod/Selen-Quotienten und des Ferritins für das Auftreten einer Autoimmunthyreoiditis (AIT) bei omnivor, lakto-vegetarisch und vegan sich ernährenden Personen: Eine epidemiologische klinische Querschnittstudie. Dissertation zum Erwerb des Doktorgrades der Medizin. Dissertation; Ludwig-Maximilians-Universität, München, 2015.

106. Hoeflich, J.; Hollenbach, B.; Behrends, T.; Hoeg, A.; Stosnach, H.; Schomburg, L. The choice of biomarkers determines the selenium status in young German vegans and vegetarians. Br. J. Nutr. 2010, 104, 1601–1604, doi:10.1017/S0007114510002618.

107. Lightowler, H.J.; Davies, G.J. Micronutrient intakes in a group of UK vegans and the contribution of self-selected dietary supplements. J. R. Soc. Promot. Health 2000, 120, 117–124.

108. Thomson, C.D.; Chisholm, A.; McLachlan, S.K.; Campbell, J.M. Brazil nuts: an effective way to improve selenium status. Am. J. Clin. Nutr. 2008, 87, 379–384.

109. Colpo, E.; Vilanova, C.D.d.A.; Brenner Reetz, L.G.; Medeiros Frescura Duarte, M.M.; Farias, I.L.G.; Irineu Muller, E.; Muller, A.L.H.; Moraes Flores, E.M.; Wagner, R.; da Rocha, J.B.T. A single consumption of high amounts of the Brazil nuts improves lipid profile of healthy volunteers. J. Nutr. Metab. 2013, 2013, 11348568653185, doi:10.1155/2013/653185.

110. Martens, I.B.G.; Cardoso, B.R.; Hare, D.J.; Niedzwiecki, M.M.; Lajolo, F.M.; Martens, A.; Cozzolino, S.M.F. Selenium status in preschool children receiving a Brazil nut-enriched diet. Nutrition 2015, 31, 1339–1343, doi:10.1016/j.nut.2015.05.005.

111. Dumont, E.; Vanhaecke, F.; Cornelis, R. Selenium speciation from food source to metabolites: a critical review. Anal. Bioanal. Chem. 2006, 385, 1304–1323, doi:10.1007/s00216-006-0529-8.

112. Benstoem, C.; Goetzenich, A.; Kraemer, S.; Borosch, S.; Manzanares, W.; Hardy, G.; Stoppe, C. Selenium and its supplementation in cardiovascular disease - What do we know? Nutrients 2015, 7, 3094–3118, doi:10.3390/nu7053094.

113. Ogawa-Wong, A.N.; Berry, M.J.; Seale, L.A. Selenium and metabolic disorders: an emphasis on type 2 diabetes risk. Nutrients 2016, 8, 80, doi:10.3390/nu8020080.

114. Thomson, C.D. Assessment of requirements for selenium and adequacy of selenium status: a review. Eur. J. Clin. Nutr. 2004, 58, 391–402, doi:10.1038/sj.ejcn.1601800.

115. Wrobel, J.K.; Power, R.; Toborek, M. Biological activity of selenium: revisited. IUBMB Life 2016, 68, 97–105, doi:10.1002/iub.1466.

116. Xia, Y.; Hill, K.E.; Byrne, D.W.; Xu, J.; Burk, R.F. Effectiveness of selenium supplements in a low-selenium area of China. Am. J. Clin. Nutr. 2005, 81, 829–834.

117. PAHO. Nutritional situation in the Americas. Epidemiol. Bull. 1994, 15, 1–6.

118. Lousuebsakul-Matthews, V.; Thorpe, D.L.; Knutsen, R.; Beeson, W.L.; Fraser, G.E.; Knutsen, S.F. Legumes and meat analogues consumption are associated with hip fracture risk independently of meat intake among Caucasian men and women: the Adventist Health Study-2. Public Health Nutr. 2014, 17, 2333–2343, doi:10.1017/S1368980013002693.

119. Shams-White, M.M.; Chung, M.; Du, M.; Fu, Z.; Insogna, K.L.; Karlsen, M.C.; LeBoff, M.S.; Shapses, S.A.; Sackey, J.; Wallace, T.C.; et al. Dietary protein and bone health: a systematic review and meta-analysis from the National Osteoporosis Foundation. Am. J. Clin. Nutr. 2017, 105, 1528–1543, doi:10.3945/ajcn.116.145110.

120. Marsh, K.A.; Munn, E.A.; Baines, S.K. Protein and vegetarian diets. Med. J. Aust. 2013, 199, S7-S10.

121. Koeder C, Perez-Cueto FJA: Vegan nutrition: a preliminary guide for health professionals. Crit Rev Food Sci Nutr. 2022 Aug 12;1-38. doi: 10.1080/10408398.2022.2107997

122. Food and Nutrition Research Institute of the Department of Science and Technology (FNRI-DOST): Philippine Dietary Reference Intakes (PDRI), Philippines, 2015, revised September 2018