The utilization of the calcium of carrots by man

Rose, Madeleine S.; Eckman, Rena S.; Brownell, E. D.; Hawley, Edith; Woods, Elizabeth J.

doi:10.3181/00379727-17-39

Cited by 3 publications

(3 citation statements)

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“…The low BV of the almond powder may also be attributed to its high level of oxalic acid (Kelsay, 1985). In the 1920's, it was concluded from a human study that almonds could provide bioavailable calcium in the diet, but if a high proportion of the calcium came from almonds then the calcium would not be utilized as efficiently as calcium from milk (Rose and MacLeod, 1923).…”

Section: Resultsmentioning

confidence: 99%

Bioavailability of Calcium from Sesame Seeds, Almond Powder, Whole Wheat Bread, Spinach and Nonfat Dry Milk in Rats

Poneros-Schneier

Erdman

1989

Journal of Food Science

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Calcium bioavailability (BV) from sesame seeds, almond powder, whole wheat bread, spinach, and nonfat dry milk (NFDM) was compared to calcium BV from a calcium carbonate (CaCO,)-supplemented control diet using a rat model. When comparing different calcium sources, the relative BV of the products was CaCOS (loo%), NFDM (100%) whole wheat bread (95%), almond powder (66%), sesame seeds (65%), NFDM and spinach mixture (52%), and spinach (47%). Separate almond, NFDM, and CaCOS diets were supplemented with 0.4% ascorbic acid; vitamin C addition had no significant effect on calcium BV.

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Section: Resultsmentioning

confidence: 99%

Bioavailability of Calcium from Sesame Seeds, Almond Powder, Whole Wheat Bread, Spinach and Nonfat Dry Milk in Rats

Poneros-Schneier

Erdman

1989

Journal of Food Science

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“…Figure 14 records mean values for urine calcium of infants, children, and adults given diets of low and high vegetable content. In general, the feeding of increased amounts of vegetables appeared to decrease the urinary calcium, particularly when the chief source of intake calcium was vegetables (22,31,32,38,63), but the effect of the roughage was minor and inconsistent.…”

Section: The Influence Of Dietary Factors Other Than Calcium Intakementioning

confidence: 99%

Factors Influencing the Urinary Excretion of Calcium. I. In Normal Persons1

Knapp¹

1947

J. Clin. Invest.

160

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“…There is no information on the precise availability of calcium in these spinaches. Previous workers, from balance experiments, have shown that in the main the calcium of most vegetables, root and leafy, is absorbed as well (or almost as well), as that of milk (Rose, 1920;Blatherwick and Long, 1922;Mallon, Johnson and Darby, 1933;Adolph and Chen, 1932). One exception is the calcium in Swiss Chard spinach (Spinacia oleracea) which a number of balance studies have indicated to be less well absorbed and retained (McLaughlin, 1927;Schultz, Morse and Oldham, 1933;Fincke and Sherman, 1935;Bonner, et al, 1938;Johnson, McMillan and Falconer, 1952;Doesburg, 1952;Schuphan and Weinmann, 1958;Kusama, Marakami and Kidokoro, 1963).…”

Section: Introductionmentioning

confidence: 98%

An attempt to measure the availability of calcium in edible leaves commonly consumed by South African negroes

Walker

Wadvalla

1975

Ecology of Food and Nutrition

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Most primitive and emerging populations obtain their calcium, largely or almost wholly, from vegetable sources. Of these, edible leaves (wild and cultivated), in certain contexts, are very important. To throw light on the availability of the calcium content, five common types of cooked edible leaves or "spinaches", all having low concentrations of oxalic acid, were fed in amounts containing about 200 mg calcium, to groups of South African Negro children. Urinary calcium excretions, accruing over 6 hour periods, were determined. The mean amounts of calcium excreted were of the same order and similar to that resulting from consumption of a volume of milk containing 200 mg calcium. Using the methodology described, it was confirmed that the calcium in Swiss Chard "spinach", (Spinacia oleracea) with its high oxalic acid content, is poorly absorbed. Nevertheless, it is inferred that the calcium contained in leaves of "spinaches" commonly consumed is available for utilization, a finding in agreement with observations on South African Negroes with respect to the satisfactory composition, dimensions, and other related indices of bone which reflect calcium status.

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The utilization of the calcium of carrots by man

Cited by 3 publications

References 0 publications

Bioavailability of Calcium from Sesame Seeds, Almond Powder, Whole Wheat Bread, Spinach and Nonfat Dry Milk in Rats

Bioavailability of Calcium from Sesame Seeds, Almond Powder, Whole Wheat Bread, Spinach and Nonfat Dry Milk in Rats

Factors Influencing the Urinary Excretion of Calcium. I. In Normal Persons1

An attempt to measure the availability of calcium in edible leaves commonly consumed by South African negroes

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