Effect of Interaction of Various Foods on Iron Absorption

Layrisse, Miguel; Martínez-Torres, Carlos; Roche, Marcel

doi:10.1093/ajcn/21.10.1175

Cited by 212 publications

(85 citation statements)

References 6 publications

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“…There are two main differences between these meals. Breakfast contained only insignificant amounts of fish and meat products, which have been shown to enhance iron absorption (12,32,33), and the content of phytic acid phosphorous was much higher than in the other meals. The ratio of phytic acid phosphorous to nonheme iron was more than six in breakfast and less than three in the lunch-dinner.…”

Section: Discussionmentioning

confidence: 99%

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Food Iron Absorption in Man APPLICATIONS OF THE TWO-POOL EXTRINSIC TAG METHOD TO MEASURE HEME AND NONHEME IRON ABSORPTION FROM THE WHOLE DIET

Björn-Rasmussen¹,

Hallberg²,

Isaksson³

et al. 1974

J. Clin. Invest.

203

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ABS TRA CT A new radioisotope method to measure iron absorption from the whole diet was used in this study. The method is based on the concept that food iron is absorbed from two pools, the heme iron pool and the nonheme iron pool, which can be especially labeled with two radioiron isotopes given as hemoglobin and as an iron salt. The purpose of this study was to test the accuracy of this two-pool extrinsic tag method.The meals served were composed as an average of 6 wk consumption in the present material of 32 young enlisted men. The mean and total heme and nonheme iron absorption in all the 32 young men was 1.01±0.11. This figure agrees well with the mean daily losses expected for this group of subjects (1.0 mg). The conclusion can therefore be made that there are no major systematic errors of the present method to measure the total iron absorption from a mixed diet.In one series a comparison was made of the absorption of heme and nonheme iron from the meals. A significant correlation between the absorption of the two kinds of iron was found. However, a much greater fraction of the heme iron was absorbed (37%) than of the nonheme iron (5%).The absorption both from breakfast and lunch was in two series found to give a good prediction of the total daily nonheme iron absorption. One series was designed to compare the effect of two levels of iron fortification. There was a significant increase in iron absorption when the level of iron fortification of the meals was increased.

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Section: Discussionmentioning

confidence: 99%

“…32 iron was exchanged for ferrous sulphate to ensure a iron-containing foods (meat and fish), and one with the complete exchange with the added nonheme iron tag. In remaining foodstuffs.…”

Section: Methodsmentioning

confidence: 99%

Food Iron Absorption in Man APPLICATIONS OF THE TWO-POOL EXTRINSIC TAG METHOD TO MEASURE HEME AND NONHEME IRON ABSORPTION FROM THE WHOLE DIET

Björn-Rasmussen¹,

Hallberg²,

Isaksson³

et al. 1974

J. Clin. Invest.

203

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“…The principle of employing biosynthetically tagged foods, described originally by Moore and Dubach (1) has been applied extensively in studies of iron availability from various plant and vegetable foods (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13). Although these studies have yielded useful information, this kind of approach has serious limitations.…”

Section: Introductionmentioning

confidence: 99%

“…Although these studies have yielded useful information, this kind of approach has serious limitations. Not only is the preparation of labeled foods difficult, but their absorp-tion differs depending upon whether the tagged food is eaten by itself or with other foods (7,11,12). Thus, results obtained by biosynthetic labeling may have little bearing on the problem of iron absorption from a normal diet.…”

Section: Introductionmentioning

confidence: 99%

Food Iron Absorption Measured by an Extrinsic Tag

Cook¹,

Layrisse²,

et al. 1972

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“…LAYRISSE et al 3 evidenciaram que a absorção do ferro é maior quando a ingestão do mesmo é concomitante com a de proteínas de origem animal. MAZZILI 5 , refere que o consumo de proteínas de origem animal é adequado em Pontal do Ribeira e Icapara, evidentemente, por serem regiões pesqueiras.…”

Section: Comentáriosunclassified

Anemia ferropriva em populações da região sul do Estado de São Paulo

Szarfarc¹

1972

Rev. Saúde Pública

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Foi feito um levantamento da ocorrência de anemia ferropriva no Vale do Ribeira, nas localidades de Iguape, Apiaí, Ribeira, Barra do Chapéu e Pontal do Ribeira, através de dosagens, no sangue, de Hemoglobina, Hematócrito, Ferro sérico e Capacidade de Ligação de Ferro. Na mesma amostra populacional, pelo estudo da composição dos alimentos consumidos, foi obtida a ingestão de ferro, média, diária, "per capita" nas seis localidades referidas. Os resultados da adequação de consumo foram: em Iguape, 91%; Pontal do Ribeira, 63%; Icapara, 81%; Apiaí, 122%; Ribeira, 99% e em Barra do Chapéu, 125%. Através dos índices aplicados, evidenciou-se a existência de anemia como problema de Saúde Pública na grande maioria das áreas estudadas.

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Effect of Interaction of Various Foods on Iron Absorption

Cited by 212 publications

References 6 publications

Food Iron Absorption in Man APPLICATIONS OF THE TWO-POOL EXTRINSIC TAG METHOD TO MEASURE HEME AND NONHEME IRON ABSORPTION FROM THE WHOLE DIET

Food Iron Absorption in Man APPLICATIONS OF THE TWO-POOL EXTRINSIC TAG METHOD TO MEASURE HEME AND NONHEME IRON ABSORPTION FROM THE WHOLE DIET

Food Iron Absorption Measured by an Extrinsic Tag

Anemia ferropriva em populações da região sul do Estado de São Paulo

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