Originally Posted by Abaddon
Then I'm pretty sure she's an idiot..
I'm not so sure about that. Most people in this thread say that a person should get ~1gr of protein for every 1lb of bodyweight. For the 150lb person, that equates to 150 grams of protein. That's pretty much what the trainer recommended.
The lifter will also have to have enough calories to grow, so it makes sense to make up the difference in carbs and fat.