14. Calcium and iron absorption–mechanisms and public health relevance, https://pubmed.ncbi.nlm.nih.gov/21462112/

15. Calcium: effect of different amounts on nonheme- and heme-iron absorption in humans, https://pubmed.ncbi.nlm.nih.gov/1984335/

16. Meat protein fractions enhance nonheme iron absorption in humans, https://pubmed.ncbi.nlm.nih.gov/17056805/

17. Effect of tea and other dietary factors on iron absorption, https://pubmed.ncbi.nlm.nih.gov/11029010/

18. Effects of cooking methods on the iron and zinc contents in cowpea (Vigna unguiculata) to combat nutritional deficiencies in Brazil, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3926463/

19. Ferrous versus Ferric Oral Iron Formulations for the Treatment of Iron Deficiency: A Clinical Overview, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3354642/

20. Questions and answers on iron deficiency treatment selection and the use of intravenous iron in routine clinical practice, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7877947/

21. Iron Deficiency Anemia in Inflammatory Bowel Diseases-A Narrative Review, https://pubmed.ncbi.nlm.nih.gov/34836263/

22. Ferrous Sulfate Supplementation Causes Significant Gastrointestinal Side-Effects in Adults: A Systematic Review and Meta-Analysis, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4336293/

23. Serum Trace Element Levels and Their Correlation with Picky Eating Behavior, Development, and Physical Activity in Early Childhood, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8308333/

24. Position of the American Dietetic Association: vegetarian diets, https://pubmed.ncbi.nlm.nih.gov/19562864/

25. EPIC-Oxford: lifestyle characteristics and nutrient intakes in a cohort of 33 883 meat-eaters and 31 546 non meat-eaters in the UK, https://pubmed.ncbi.nlm.nih.gov/12740075/

26. Bioavailability of iron, zinc, and other trace minerals from vegetarian diets, https://pubmed.ncbi.nlm.nih.gov/12936958/

27. Iron deficiency and cognitive functions, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4235202/

28. Effects of iron deficiency anemia on cognitive function in children, https://pubmed.ncbi.nlm.nih.gov/17691592/

29. Iron overload in human disease, https://pubmed.ncbi.nlm.nih.gov/22276824/

30. Beyond hereditary hemochromatosis: new insights into the relationship between iron overload and chronic liver diseases, https://pubmed.ncbi.nlm.nih.gov/20739232/

31. Iron overload: consequences, assessment, and monitoring, https://pubmed.ncbi.nlm.nih.gov/20001632/

32. Hepatic Iron Overload and Hepatocellular Carcinoma, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3995380/