What happens if you eat a bodybuilder's diet but don't exercise?

What happens if you eat a bodybuilder’s diet but don’t exercise?

He will probably beat you up for stealing his food.

Unless you run.

Don’t click on links much do you?

No in the study linked to (and others too if you want 'em) the subjects were not “expensively managed Olympians and actors” - just regular joes, in this case overweight cops, advised on a modestly low calorie diet with and without some basic resistance exercise and extra protein.

As Martin Hyde explains, if the goal is to maximize muscle gains then simultaneous significant caloric restriction won’t do it. But moderate caloric restriction with adequate nutrition (in particular enough protein) and resistance training can result in simultaneous fat loss and muscle mass gain even for us hoi polloi.

You’ve changed the “more calories, no excercise” scenario to “less calories, some exercise” - the exact opposite - for some reason.

Yes, I agree it’s possible in that latter scenario. You are correct.

Well my post did clearly state that the op was answered and that I was responding to your claim that a calorie surplus was required to build muscle. Not quite sure was not clear about that.

To summarize:

Calorie surplus, even “healthy” calories, without exercise, equals increased fat mass without increased muscle mass.

Calorie surplus, in healthy calories, with resistance exercise, equals maximized muscle/strength gains, but also increased fat mass.

Moderate calorie deficit, adequate nutrition, with resistance exercise, equals modest muscle/strength gains and decreased fat mass. It is possible to build muscle without a calorie surplus, even with a modest calorie deficit.

I think we all got that now.

You get fat. I can send you pictures to prove it.

You can gain muscle without ‘working out’ if you are somewhat active in your daily life, and eating at a caloric excess. I’ve done it. But you’ll gain fat as well, and you won’t gain nearly as much/as fast when it comes to muscle as you will if you’re doing targeted exercise.

That probably depends on the exact nature of “somewhat active in your daily life” (as well as your physical condition at the start).

Both. You would increase both muscle mass and body fat, provided you are consuming an adequate amount of protein.

Conversely, if you weren’t consuming sufficient protein you would lose muscle masswhile simultaeously accumulating body fat.

http://jama.ama-assn.org/content/307/1/47.full

If you stay off carbs you will have to eat a lot to gain weight. Excess proteins and fats are easily excreted without becoming body fat. But since you have plenty of protein and fat in your system, every carb you eat will become body fat and stay that way. Despite the constant repetition of the meme, a calorie is not a calorie. It’s not simply a matter of calories consumed, but calories metabolized.

Discussion in IMHO regarding the study Surreal references. A study that shows that at least under the condition of keeping the same carbs and increasing protein, and to a lesser amount fat, lean body mass increases as well as fat mass. Not quite the diets described in the op but close enough to inform. Hence my post # 24 was not completely accurate: overfeeding protein will result in some lean body mass gain along with fat mass even without resistance exercise added in.

Note that of the experimental overfeeding groups the one that gained only fat mass and failed to gain any lean body mass was the high fat/low protein group. Excess fat is not “easily excreted”; excess fat is excess calories and becomes fat.