If you are looking specifically for a protein powder Kian has recommened to me:
"Make sure the protein supplement you are using PWO is a high quality source and is infact a protein supplement and not a weight gainer. Try to put your money towards any of the following sources:
Bioactive Whey Fraction,
Cross Flow Microfiltration Whey Isolate,
Ion-exchanged Whey Isolate, Whey Isolate. (again, read the labels closely)"
if you are looking at weight gainers ive personally been doing quite a bit of research on them.
the nlarge2 strawberry (
http://www.prolab.com/RETAIL/produc...oduct_id=1000 ) has:
per shake 600cals/ 87g carbs/52g protein/28g sugars
while the cals are signiicantly less per shake in the nlarge 2 than the mammoth2500 shake (mammoth2500 has a BEAST 970cals per shake) the carbs are also much less (65g's less) and sugars are suspiciously not mentioned on the mammoth2500 website
http://www.interactivenutrition.com...mammoth2500.php
so there is a significant diference betwen the weight gainers and protein powder. use the protein powder post immedialy post work out with some carbs like a sweet potato. and carb load before the workout as well, with some protein beforehand also a good idea for continual release.
im still learning myself but hopefully that helps
peace