It is widely known that dietary proteins stimulate thermogenesis (fat loss) and satiety (the feeling of being ‘full’) more than carbohydrates or fat. But a recent study conducted in Switzerland and published in the American Journal of Clinical Nutrition set out to determine exactly which protein was best for fat loss.
The study took 23 healthy lean adults and gave them meals consisting of whey protein, casein protein and soy protein. The thermic effect of each meal (so the amount of calories it takes to digest the protein) and the extent to which it kept them feeling full was then measured before and then 5.5 hours after their consumption. The study found that the thermic effect of the whey protein was higher than both the casein and soy protein and that cumulative fat oxidisation was also higher in the whey. Interestingly though, the study subjectively found that those who ate the casein and soy based meals remained fuller for longer.
The study concluded ‘results suggest that different protein sources could be used to modulate metabolism and subsequently energy balance.’ Regardless of your protein preference, Myprotein.com has one of the widest selection of protein powders on the market, including all 3 mentioned in the Swedish study.