Protein increases metabolism more than carbohydrates and fat.
So you eat protein with a meal and what’s called the “thermic effect
of feeding” increases more to digest, breakdown, and metabolism the
food. The higher the caloric burn, theoretically the greater the
weight loss.
Combine that data with the fact that protein helps fill you up more
and you’ve got a win win for weight loss. Of course there’s more
specifics to cover; we could go on about the quality of the protein as
well and, in fact, this study did just that.
It measured the effects of supplemental proteins — whey, casein, or
soy – on metabolism, satiety, and blood sugar. These 3 were compared to
an equal calorie carbohydrate feeding.
What did they find? All proteins were “better” in this case than
carbohydrate in terms of the metabolic increase. Next, looking
specifically at the different types of protein, the whey protein caused a significantly greater increase in metabolism than both casein and soy.
On the flip side, casein and soy were reported as more satiating than
the whey … but, more important than any of this scientific mumbo jumbo
is that the whey was more “liked” compared to the others.
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