Couldn't people just eat properly and exercise well? Hence becoming fitter and healthier? it usually works for me and my fitness is almost certainly a lot better than all the gym freaks who spend their time slurping whey protein etc and hanging out in airless gyms when they could be outside in the real world. Gyms are where I go when I have injuries that prevent me exercising properly.

Actually there is a simple answer.

5/6 meals a day
600/700 cals per meal
Protein shakes at times specified by cala
Train hard 4 times a week
8 hours of sleep

do that for months on end and you'll get bigger.

But if this guy thinkg he can eat his 3 square meals a day down some protein shakes and grow he's gooing to get nowehere fast.

I used the like The Guardian's G2 ....

We're agreeing here! I said he (maybe) wants to hear a simple answer like, use whey. I said it's more complex than that and your simple answer is exactly that - more complex than being told to down shakes for size.

The other thing i'd say, which has been touched on by others, is that you should treat your metabolism like a fire. You need to keep feeding it for it to work. If you eat rarely (every 5 hours or so) your body doesn't use the grub as best it can. Instead, it's inclined to store. So yeah, 5 or 6 meals at regular intervals helps.

And everyone elses food that comes in, as well as a regular 14 meals a day!