Effect of yogurt on a urinary marker of bone resorption in postmenopausal women.

Abstract

Adding three servings of yogurt to the daily diet of older women with habitually low calcium intakes resulted in a significant reduction in urinary excretion of N-telepeptide, a marker for bone resorption. Results were compared to the effects of three servings of a nutrition-poor snack and differences were apparent 7-10 days of starting the diet change. The satiety effect of the snacks resulted in a decrease in intake of other foods. The added nutrients of the yogurt improved overall diet quality substantially, while diet quality declined with the nutrient-poor snack. The results show that diets low in dairy intake are often marginal for several nutrients and that, so far as calcium is concerned, bone makes up for what the diet lacks. Moreover, bone resorption responds rapidly and sensitively to improvements in calcium intake that are readily achievable by an older female population.

• Authors: Robert P Heaney, Karen Rafferty, M Susan Dowell
• Journal: Journal of the American Dietetic Association (J Am Diet Assoc) Vol. 102 Issue 11 Pg. 1672-4 (Nov 2002) ISSN: 0002-8223 [Print] United States
• PMID: 12449294 (Publication Type: Clinical Trial, Comment, Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't)

Chemical References

• Calcium, Dietary
• Collagen Type I
• Peptides
• collagen type I trimeric cross-linked peptide
• Collagen

Topics

• Bone Resorption (metabolism, prevention & control, urine)
• Calcium, Dietary (administration & dosage, pharmacokinetics, urine)
• Collagen (urine)
• Collagen Type I
• Cross-Over Studies
• Diet (standards)
• Female
• Humans
• Middle Aged
• Peptides (urine)
• Postmenopause (urine)
• Yogurt