This is so new it isn't even up on the Cytosport website yet.

I wonder whether the introduction of this product will cause some confusion, since Muscle Milk Light RTD, similarly, has fewer calories than Muscle Milk. The latter, though, has 100 calories, 2.5g fat, 6g carbohydrates (no sugar) including 2g fibre, and 14g protein.

It seems that the new Diet Muscle Milk is aimed to be more of a MRP (perhaps for women) than simply a protein supplement, compared to Muscle Milk Light.