Optimum Nutrition are a very reputable nutrition corporation, and this is just one of their fine products. I am just starting bodybuilding, and obviously, the emphasis is eating WHOLE PROTEIN FOOD, not just supplementation. However, sometimes just eating cans of tuna, or chicken fillets can get boring, so something a little tastier is needed...
This is where Optimum Nutrition's 100% Gold Standard Whey Protein kicks in. It used Protein Isolate, which is more usable by the body (apparently). Basically, if your training hard and into gaining mass or whatever, then use this product, but use it WISELY. Dont just use it on its own expecting to gain freaky levels of mass, EAT loads, and use this on the side, and wait a couple of months for results.
Most importantly though, the cookies and cream flavour tastes GORGEOUS. Its also the only Whey protein ive ever used that completely dissolves in milk or water with a little stirring. All the other protein powders i have used (Holland and Barret, Weider, York) have been terrible compared to this product.
This is the product by which all other protein powders are measured. Buy it, use it wisely and enjoy the results ! :)