If he is in an overall deficit, eats enough protein and performs intense strength training, he will lose fat that day.
Bullshit...Eating less and losing excess body fat do not automatically go hand in hand. Low calorie, high carb diets generate a series of biochemical signals in your body that will take you out of the balance, making it more difficult to access stored body fat for energy. Result: you'll reach a weight-loss plateau, beyond which you simply can't lose any more weight.
Once the glycogen levels are filled in both the liver and the muscles, excess carbohydrates have just one fate: to be converted into fat and stored in the adipose, that is, fatty, tissue. In a nutshell, even though carbohydrates themselves are fat-free, excess carbohydrates ends up as excess fat. That's not the worst of it. Any meal or snack high in carbohydrates will generate a rapid rise in blood glucose.
The problem is that insulin is essentially a storage hormone, evolved to put aside excess carbohydrate calories in the form of fat in case of future famine. So the insulin that's stimulated by excess carbohydrates aggressively promotes the accumulation of body fat. In other words, when we eat too much carbohydrate, we're essentially sending a hormonal message, via insulin, to the body (actually, to the adipose cells). The message: "Store fat."
Not only do increased insulin levels tell the body to store carbohydrates as fat, they also tell it not to release any stored fat. This makes it impossible for you to use your own stored body fat for energy. So the excess carbohydrates in your diet not only make you fat, they make sure you stay fat. It's a double whammy, and it can be lethal.
Insulin is released by the pancreas after you eat carbohydrates. This causes a rise in blood sugar. Insulin assures your cells receive some blood sugar necessary for life, and increases glycogen storage. However, it also drives your body to use more carbohydrate, and less fat, as fuel. And, insulin converts almost half of your dietary carbohydrate to fat for storage. If you want to use more fats for energy, the insulin response must be moderated. Diets high in refined sugars release more insulin thereby allowing less stored fat to be burned. High insulin levels also suppress two important hormones: glucagon and growth hormone. Glucagon promotes the burning of fat and sugar. Growth hormone is used for muscle development and building new muscle mass.
Insulin also causes hunger. As blood sugar increases following a carbohydrate meal, insulin rises with the eventual result of lower blood sugar. This results in hunger, often only a couple of hours (or less) after the meal. Cravings, usually for sweets, are frequently part of this cycle, leading you to resort to snacking, often on more carbohydrates. Not eating makes you feel ravenous shaky, moody and ready to "crash." If the problem is chronic, you never get rid of that extra stored fat, and your energy is adversely affected.
This aint bro-science...This is fact. Look it up. Where is your proof in what you're saying?
BTW the above are not my words...taken from Dr. Joseph Mercola, 1443 W.Schaumburg, Schaumburg, IL 60194-4065
Telephone 847-985-1777