Whey protein benefits overweight people in study

by Jeff Gelski
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PERTH, AUSTRALIA — Whey protein supplementation improved fasting lipids and insulin levels in overweight and obese individuals in a study at Curtin University of Technology in Perth. Results of the study appeared on-line April 9 in the British Journal of Nutrition.

The 12-week study involved 70 men and women with a mean age of 48 and a mean body mass index (B.M.I.) of 31.3. They were given whey protein, casein or glucose supplementation.

Subjects supplemented with whey protein had no significant change in body composition or serum glucose at 12 weeks when compared with the control or casein group. Fasting levels were lowered significantly in the whey group when compared with the control group at six weeks and 12 weeks. There was a significant decrease in total cholesterol and L.D.L. (bad) cholesterol at week 12 in the whey group when compared with the casein and control groups. Fasting insulin levels and homeostasis model assessment of insulin resistance scores were decreased significantly in the whey group when compared with the control group.

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