A Study of the Iron Metabolism of Normal Women

Ohlson, Margaret A.; Daum, Kate

doi:10.1093/jn/9.1.75

Cited by 33 publications

(7 citation statements)

References 15 publications

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“…The majority of Cu intakes reported for mixed Western diets were between 1-3 mgfd (Ohlson & Daum, 1935;Leverton, 1939;Kehoe, Cholak & Story, 1940;Leverton & Binkley, 1944;Tipton et al 1969;Wester, 1971Wester, ,1974Robinson et al 1973;Hartley, Dawson & Hodgkinson, 1974;Kirkpatrick & Coffin, 1974). The Cu intakes in the present study were at, or less than, the lower limit of this range.…”

Section: Discussionmentioning

confidence: 99%

Daily intakes of manganese, copper, zinc and cadmium by New Zealand women

Guthrie

Robinson

1977

Br J Nutr

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1. A total of 179 duplicate diets were collected by twenty-three women consuming their habitual diet. Twelve of the subjects were living in a residential hall for students, the others were living in their own homes or in flats. Collection periods varied from 3 to 21 d. 2. Average daily intakes were: manganese 2-7 mg; copper 1-5 mg for diets not containing liver, 7-6 mg for fifteen diets containing liver; zinc 10-0 mg; cadmium 21 microgram for diets not containing liver, 27 microgram for fifteen diets containing liver. 3. The intakes were compared with values for adults from other countries and with current recommended dietary allowances or estimated minimum requirements. Mn intakes were typical for non-vegeratian Western diets. Cu and Zn intakes may have been marginally low. The intakes of Cd were low. 4. Daily intakes of protein (71 g), fat (83 g), fat (83 g), carbohydrate (224 g) and energy (8-1 MJ) from 129 of the diets were similar to recent values obtained for New Zealand women. 5. Subjects living in the residential hall had higher intakes of all nutrients than subjects living in their own homes or flats.

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Section: Discussionmentioning

confidence: 99%

Daily intakes of manganese, copper, zinc and cadmium by New Zealand women

Guthrie

Robinson

1977

Br J Nutr

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“…His observations are of extraordinary value to those studying balances, but give no information as to iron requirements over prolonged periods. Ohlson and Daum (1935) studied the iron metabolism of normal women, and found that on self-chosen diets containing liberal amounts of protein, calories and other essential constituents, the average daily amount of iron ingested was 13-78 mg., while the average daily excretion was 14-95 mg. Since this intake would be considered adequate by most authorities, it is not clear why these women were in negative iron balance.…”

Section: Part I Total and Available Iron In Freely Chosen Diets Intromentioning

confidence: 99%

Iron in Human Nutrition

Widdowson

McCance

1936

J. Hyg.

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An investigation has been made of the iron intake of sixty-three men and sixty-three women of the English middle class, living on freely chosen diets. Their intakes of total iron have been found to have mean values of 16·8 and 11·4 mg. per day respectively. The highest value found for any woman was only just above the average for the men, and 30 per cent, of the women were taking less than 10 mg. of iron a day.“Available” or inorganic iron in the diets has also been calculated, and has been found to average 10·8 mg. per day for men and 7·9 mg. for women. If fairly large amounts of meat are eaten, the available iron may be less than half the total iron in the diet. If, on the other hand, the diet is mainly vegetarian, about 90 per cent, of the total iron may be available.Haemoglobin determinations were made on more than 50 per cent, of the subjects. The men's average was 102 per cent, and the women's 93 per cent. No significant correlation could be found between the total or available iron intake and the haemoglobin level.The effect of large doses of iron (100 mg. of iron a day as ferrous sulphate or ferric ammonium citrate) on normal haemoglobin levels has been investigated. This has scarcely altered the haemoglobin percentages of men, but has increased the values for women by 4–17 per cent, and a mean rise of over 10 per cent, has been observed.

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“…Neuweiler (1938) estimated that the total foetal requirement of iron is 375 mg. Several workers have calculated the daily dietary iron requirement of pregnant women. Coons (1932) estimated this to be 14.7 mg., Davidson et al (1935) suggested 15 mg. and Ohlson and Daum (1935), Ebbs et al (1941) and the National Research Council (U.S.A.) (1947) have agreed with this figure, whereas McCance and Widdowson (1946) give 16 to 20 mg. as the minimum daily iron requirement during pregnancy. This amount of iron need may be met by the diets of the mediumincome Whites but it is unlikely to be provided by the diets of the non-White racial groups in Cape Town.…”

Section: Discussionmentioning

confidence: 88%

Haematological Values in Pregnant Women at Term and After Delivery in the Three Main Racial Groups in Cape Town

Lanzkowsky

1960

BJOG

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A Study of the Iron Metabolism of Normal Women

Cited by 33 publications

References 15 publications

Daily intakes of manganese, copper, zinc and cadmium by New Zealand women

Daily intakes of manganese, copper, zinc and cadmium by New Zealand women

Iron in Human Nutrition

Haematological Values in Pregnant Women at Term and After Delivery in the Three Main Racial Groups in Cape Town

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