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Soy protein products and heme iron absorption in humans.
Am J Clin Nutr. 1985 Jan; 41(1):13-20.AJ

Abstract

Dual radioiron tags were used to measure both heme and nonheme iron absorption simultaneously from meat-containing meals in 76 healthy male volunteers. Partial substitution of beef with soy flour reduced the availability of nonheme iron but improved the percentage absorption of heme iron significantly (27 to 59% rise). In contradistinction three other powerful inhibitors of nonheme iron absorption, bran, tea, and desferrioxamine, had no appreciable effect on heme. Ascorbic acid (100 mg and 1000 mg in separate experiments) improved nonheme iron uptake markedly but also failed to alter the assimilation of heme. These studies demonstrate that the deleterious effects on iron nutrition of substituting soy protein for beef are partially offset by improved availability of the remaining heme iron as well as by an increase in the nonheme iron content of the meal.

Authors

No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

4038429

Citation

Lynch, S R., et al. "Soy Protein Products and Heme Iron Absorption in Humans." The American Journal of Clinical Nutrition, vol. 41, no. 1, 1985, pp. 13-20.
Lynch SR, Dassenko SA, Morck TA, et al. Soy protein products and heme iron absorption in humans. Am J Clin Nutr. 1985;41(1):13-20.
Lynch, S. R., Dassenko, S. A., Morck, T. A., Beard, J. L., & Cook, J. D. (1985). Soy protein products and heme iron absorption in humans. The American Journal of Clinical Nutrition, 41(1), 13-20.
Lynch SR, et al. Soy Protein Products and Heme Iron Absorption in Humans. Am J Clin Nutr. 1985;41(1):13-20. PubMed PMID: 4038429.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Soy protein products and heme iron absorption in humans. AU - Lynch,S R, AU - Dassenko,S A, AU - Morck,T A, AU - Beard,J L, AU - Cook,J D, PY - 1985/1/1/pubmed PY - 1985/1/1/medline PY - 1985/1/1/entrez SP - 13 EP - 20 JF - The American journal of clinical nutrition JO - Am J Clin Nutr VL - 41 IS - 1 N2 - Dual radioiron tags were used to measure both heme and nonheme iron absorption simultaneously from meat-containing meals in 76 healthy male volunteers. Partial substitution of beef with soy flour reduced the availability of nonheme iron but improved the percentage absorption of heme iron significantly (27 to 59% rise). In contradistinction three other powerful inhibitors of nonheme iron absorption, bran, tea, and desferrioxamine, had no appreciable effect on heme. Ascorbic acid (100 mg and 1000 mg in separate experiments) improved nonheme iron uptake markedly but also failed to alter the assimilation of heme. These studies demonstrate that the deleterious effects on iron nutrition of substituting soy protein for beef are partially offset by improved availability of the remaining heme iron as well as by an increase in the nonheme iron content of the meal. SN - 0002-9165 UR - https://www.unboundmedicine.com/medline/citation/4038429/Soy_protein_products_and_heme_iron_absorption_in_humans_ L2 - https://academic.oup.com/ajcn/article-lookup/doi/10.1093/ajcn/41.1.13 DB - PRIME DP - Unbound Medicine ER -