Which is the best protein powder?

It sounds like what you're looking for is a whey protein isolate. It's pure protein, low carb and doesn't add muscle mass or bulk. I use Precision, which can be gotten at most vitamin store chains. Do your research; good luck.

I use Optimum Nutrition Whey for that. A really high quality protein that's low in carbs and fat. There is a lot of science behind it and it's very expensive but it is delicious.

whey protein
but you need to mix energy input and energy output and be wise
slow gradual over time
reduce control stress and get enough sleep

http://www.bodybuilding.com/store/opt/whey.html

& if can afford it get their naturally flavored one

Hey, don't do it, my friend was irregular and he wrecked up his joints and everything

After the "y" at the end put ".html"

Just eat the whole jar and wreck your kidneys.