is drinking protein shakes good for the body?

Philippines
January 12, 2011 5:00pm CST
I am 19 years old and my body type is somewhat skinny i tried drinking protein shakes like optimum whey but after i drink the 5 pounds optimum whey nothing happened in my body. i usually go to gym 3 times a week and i only drink my protein shake if i am going to workout. so should i try other protein shakes like nitro tech or should i stick to whey optimum?
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