Bovine Colostrum May Increase Lean Body Mass

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Bovine Colostrum May Increase Lean Body Mass

Bovine colostrum is the initial milk secreted by cows during parturition and the first few days of postparturition.

There is evidence to suggest that bovine colostrum contains growth factors which stimulate cellular growth and DNA synthesis. In neonatal piglets acutely fed colostrum, the fractal rates of protein synthesis in the liver, kidney, spleen and skeletal muscle, as well as the absolute rate of protein synthesis in the liver and spleen, were greater than in pigs fed mature milk or water.

Oral supplementation with bovine colostrum by humans has been shown to significantly enhance plasma insulin-like growth factor-one concentrations, but have no effect on vertical jump performance. Although bovine colostrum is not typically thought of as a food supplement, bodybuilders have known of its use and availability for years.

In this study, subjects were randomly assigned to a placebo or colostrum group. Each subject participated in aerobic and heavy-resistance training three times per week. Treadmill time to exhaustion, one-repetition maximum strength lift, and the total number of repetitions performed during one set to exhaustion (50% and 100% of body weight for men and women) were ascertained.

The placebo group experienced a significant increase in bone-free lean body mass. There were no changes in any of the other parameters measured. The authors conclude that supplementation with bovine colostrum, in combination with exercise training, may increase bone-free lean body mass in active men and women.

Sanders A, Gammeren V. The effects of bovine colostrum supplementation on body composition and exercise performance in active men and women. Nutrition 2001:17(3), pp243-247.