没那么简单

举个例子

Optimum Nutrition's Gold Standard 100% Whey protein powder typically contains a protein blend of whey protein isolate, whey protein concentrate, and whey peptides. It also includes ingredients like natural and artificial flavors, lecithin (often soy or sunflower), and sometimes thickeners like xanthan gum. Sweeteners like sucralose and acesulfame potassium are also common. 

后面这些提升口感和味道的东西才是问题所在。

所以我到不得已的时候才用蛋白粉。能吃真正食物的时候就不去喝蛋白粉。