Hence the efficiency of dietary cysteine in inducing supernormal glutathione levels is greater when it is delivered in the whey protein than as free cysteine.

• 因此，以喂食乳浆蛋白方式摄取半胱氨酸在导致高谷胱甘肽水平的效能要比直接服用半胱氨酸来的大。