Abstract

 Breastfeeding reduces long-term maternal pregnancy weight retention but also results in high bone turnover. Dairy intake and exercise have bone-protective effects in pre-menopausal women during weight loss. The objective of this study was to investigate the effects of yogurt supplementation and exercise on body composition and bone mineral density in lactating women 8 - 20 weeks postpartum. At 8-wks postpartum, women were randomized into an intervention group [IG, n = 6 that received yogurt supplementation (≥ 3d/wk, 6oz each day) and exercise (3 d/wk, 45 min/d, ≥ 10,000 steps/d)] or a control group (CG, n = 2, no dietary or exercise intervention) for 12-wks. Dual x-ray absorptiometry measured body composition (weight, fat mass, lean body mass) and bone mineral density. A submaximal treadmill test predicted VO2 max. Three-day dietary records were collected using Nutrition Data System for Research software. Due to COVID-19, results are reported without comparisons between groups. IG body composition and bone changes were similar to previous studies. Dietary intake did not differ between groups and both groups met the Recommended Dietary Allowance for carbohydrates and protein (g) intake. IG compliance for 3 d/wk of yogurt consumption and exercise was 97% and 90%, respectively. The study provided preliminary data on dairy intake and exercise on body composition during lactation.

Keywords: Bone Mineral Density; Lactation; Exercise; Postpartum; Dairy

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Citation

Citation: Heather L Colleran., et al. “Effects of Yogurt Supplementation and Exercise on Body Composition during Lactation".Acta Scientific Nutritional Health 4.10 (2020): 16-25.

Copyright

Copyright: © 2020 Heather L Colleran., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.