Sometimes dieting feels like that— usually during your waking hours. Nearly everyone who wishes to lose weight has the desire and willpower to follow a diet and exercise program. Every January, gyms are filled with a lemming-like trail of new members who spend three weeks with a renewed vision of adding muscle and losing fat, only to disappear the remainder of the year.
It isn’t laziness that accounts for the drop-off in most cases, rather it’s frustration over the lack of results. It is only natural to seek out the best tools for achieving an improved physique that includes fat loss. One important aspect of weight loss is following the best diet. The low-fat versus low-carb argument has been waged for years; the latter is not bodybuilder friendly. Protein is an essential component of the diet; not only is it vital to health and function, it also aids in weight management through appetite suppression, promoting satietyand maintaining lean mass.1,2 However, is there a best protein source?
It is generally accepted that hydrolyzed whey protein, due to its rapid absorption and high branched-chain amino acid (BCAA) content, is the optimal anabolic (muscle building) protein.3 However, does that equate to it being the best protein in your diet for weight loss/fat loss? A growing research base suggests not.
Certainly, whey, casein and other proteins (e.g., egg, beef, pork, chicken, soy) can be part of a weight-loss diet. However, researchers have found (in rat studies) that the different proteins may include fractions that might support weight loss. These fractions, called bioactive peptides, are small proteins formed when the larger proteins are digested. Very little of these peptides actually get through the intestinal barrier to circulate through the bloodstream intact, so they have not been a focus of study in human nutrition. However, if the findings of a study published in the journal Metabolism Clinical and Experimental apply to human nutrition, then a highly relevant topic has been ignored.4
HEART-HEALTHY PROTEIN SOURCE
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