Journal
JOURNAL OF CLINICAL LIPIDOLOGY
Volume 11, Issue 1, Pages 136-146Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jacl.2016.10.016
Keywords
Dairy products; Kefir; Milk; Lipoproteins; Obesity; Overweight; Premenopause; Randomized controlled trial
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Funding
- Shiraz University of Medical Sciences, Shiraz, Iran [1392-6751]
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BACKGROUND: Controversy exists as to whether the lipid -lowering properties of kefir drink (a fermented probiotic dairy product) in animal models could be replicated in humans. OBJECTIVE: To assess and compare the potential lipid -lowering effects of kefir drink with low -fat milk in a dairy -rich diet in overweight or obese premenopausal women. METHODS: In this 8 -week, single -center, multiarm, parallel -group, outpatient, randomized controlled trial, 75 eligible Iranian women aged 25 to 45 years were randomly allocated to kefir, milk, or control groups. Women in the control group received a weight -maintenance diet containing 2 servings/d of low -fat dairy products, whereas subjects in the milk and kefir groups received a similar diet containing 2 additional servings/d (a total of 4 servings/d) of dairy products from low -fat milk or kefir drink, respectively. At baseline and study end point, serum levels/ratios of total cholesterol (TC), low-and high -density lipoprotein cholesterol (LDLC and HDLC), triglyceride, Non-HDLC, TC/ HDLC, LDLC/HDLC, and triglyceride/LDLC were measured as outcome measures. RESULTS: After 8 weeks, subjects in the kefir group had significantly lower serum levels/ratios of lipoproteins than those in the control group (mean between -group differences were 10.4 mg/dL, -9.7 mg/dL, -11.5 mg/dL, -0.4, and -0.3 for TC, LDLC, non-HDLC, TC/HDLC, and LDLC/ HDLC, respectively; all P <.05). Similar results were observed in the milk group. However, no such significant differences were found between the kefir and milk groups. CONCLUSION: Kefir drink causes a significant yet similar improvement in serum lipid profile, compared with low-fat milk, in a dairy-rich diet in overweight or obese premenopausal women. (C) 2016 National Lipid Association. All rights reserved.
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