Calcium bioavailability from a calcium- and sulfate-rich mineral water, compared with milk, in young adult women

Couzy, François; Kastenmayer, Peter; Vigo, M; Clough, J. R.; Muñoz-Box, Rafael; Barclay, Denis

doi:10.1093/ajcn/62.6.1239

Cited by 77 publications

(57 citation statements)

References 24 publications

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“…Although total urinary calcium excretion increased significantly on the consumption of mineral water by 14% on average, urinary calcium excretion as a percentage of dietary intake declined from 25% on the control phase to 21% on the test phase with the application of the mineral water. Our results are consistent with findings of Couzy et al (1995). Mean calcium absorption measured with a dual-label stable-isotope technique in healthy female subjects was 23.8%.…”

Section: Discussionsupporting

confidence: 92%

Influence of a mineral water rich in calcium, magnesium and bicarbonate on urine composition and the risk of calcium oxalate crystallization

2004

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Objective: To evaluate the effect of a mineral water rich in magnesium (337 mg/l), calcium (232 mg/l) and bicarbonate (3388 mg/l) on urine composition and the risk of calcium oxalate crystallization. Design: A total of 12 healthy male volunteers participated in the study. During the baseline phase, subjects collected two 24-h urine samples while on their usual diet. Throughout the control and test phases, lasting 5 days each, the subjects received a standardized diet calculated according to the recommendations. During the control phase, subjects consumed 1.4 l/day of a neutral fruit tea, which was replaced by an equal volume of a mineral water during the test phase. On the follow-up phase, subjects continued to drink 1.4 l/day of the mineral water on their usual diet and collected 24-h urine samples weekly. Results: During the intake of mineral water, urinary pH, magnesium and citrate excretion increased significantly on both standardized and normal dietary conditions. The mineral water led to a significant increase in urinary calcium excretion only on the standardized diet, and to a significantly higher urinary volume and decreased supersaturation with calcium oxalate only on the usual diet. Conclusions: The magnesium and bicarbonate content of the mineral water resulted in favorable changes in urinary pH, magnesium and citrate excretion, inhibitors of calcium oxalate stone formation, counterbalancing increased calcium excretion. Since urinary oxalate excretion did not diminish, further studies are necessary to evaluate whether the ingestion of calcium-rich mineral water with, rather than between, meals may complex oxalate in the gut thus limiting intestinal absorption and urinary excretion of calcium and oxalate.

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Section: Discussionsupporting

confidence: 92%

Influence of a mineral water rich in calcium, magnesium and bicarbonate on urine composition and the risk of calcium oxalate crystallization

2004

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“…The issue of calcium-rich mineral water was specifically addressed, as not taking into consideration this important food source of calcium could introduce a major bias in calcium estimate, and classic nutritional epidemiology studies, like that of Matkovic et al (1979), have shown the importance of calcium in water relative to bone health. Moreover the bioavailability of the calcium from mineral water appears to be satisfactory (Heaney & Dowell 1994;Couzy et al, 1995).…”

Section: Discussionmentioning

confidence: 99%

Validation of a food frequency questionnaire for nutritional calcium intake assessment in Italian women

et al. 2002

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Objective: To evaluate a food frequency questionnaire assessing calcium intake in women. Design: Estimates of calcium intake from the food frequency questionnaire were compared with those from 14 day records from 206 Caucasian women aged 25 -75 y in Siena, Italy. Subjects: Subjects were randomly recruited from the residents list of the city of Siena, Italy. Of the 250 initially recruited, 39 did not meet the inclusion criteria or failed to complete the diet record and five outliers were excluded before the statistical analysis on the basis that their diet record was unlikely to represent habitual intake. Results: Mean dietary calcium intakes were 829 AE 255 (s.d.) mg=day from the questionnaire and 818 AE 260 (s.d.) mg=day from the diet record. The mean difference in intake by the two methods (711.3 AE 116.4 mg=day) did not differ significantly from zero. Specificity in classifying women consuming less than 800 mg=day calcium was 86.6%, and sensibility in classifying women consuming more than 800 mg=day calcium was 89.4%. Conclusions: The food frequency questionnaire could be used in epidemiological studies to assess calcium intake in young to elderly women. The specificity in identifying low calcium intake subjects makes it useful also as an educational tool in diet counselling and for prescribing calcium supplementation.

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“…Notably, MW 3 was rich in SO 4 2- (1463 mg/l), which is thought to potentially increase urinary volume and therefore decrease Mg bioavailability [34,35]. To our knowledge, no study has investigated the potential influence of SO 4 2- in food on the bioavailability of Mg in humans.…”

Section: Discussionmentioning

confidence: 99%

Magnesium bioavailability from mineral waters with different mineralization levels in comparison to bread and a supplement

Schneider

Greupner

Hahn

2017

Food & Nutrition Research

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The aim of the present study was to compare the magnesium bioavailability from four mineral waters with different types of mineralization (e.g. SO4 2-, HCO3 −, calcium) with the magnesium bioavailability from bread and from a magnesium supplement. A single-center, randomized, controlled trial with a crossover design with 22 healthy men and women was conducted at the Institute of Food Science and Human Nutrition, Leibniz University Hannover, Germany. The participants consumed the six test products providing 100 mg of magnesium each on six examination days with a one-week washout phase in between. The primary outcome variables were the 24 h urinary magnesium excretion, the 24 h urinary magnesium/creatinine ratio, and the area under the curve of serum magnesium levels for 10 h (AUC0-10h). No significant differences among groups were observed for either 24 h urinary magnesium excretion or 24 h urinary magnesium/creatinine ratio. Likewise, statistical group comparisons of AUC0-10h for serum magnesium levels revealed no significant differences among the treatment groups. Accordingly, given equivalent magnesium availability from all test products, neither SO4 2- content nor the content of HCO3 − or of calcium influenced the bioavailability of magnesium. Thus, mineral water with higher concentrations of magnesium constitutes a calorie-free magnesium source that contributes to optimal magnesium supply.

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Calcium bioavailability from a calcium- and sulfate-rich mineral water, compared with milk, in young adult women

Cited by 77 publications

References 24 publications

Influence of a mineral water rich in calcium, magnesium and bicarbonate on urine composition and the risk of calcium oxalate crystallization

Influence of a mineral water rich in calcium, magnesium and bicarbonate on urine composition and the risk of calcium oxalate crystallization

Validation of a food frequency questionnaire for nutritional calcium intake assessment in Italian women

Magnesium bioavailability from mineral waters with different mineralization levels in comparison to bread and a supplement

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