Q: Mike is it true that when u wanna lose fat only u should so as hard weight training as u can and take many protein (less carbs and fats)in order to keep ur muscles and lose only fat?This way u should lose slowly fat while maintain ur muscles and lose too little muscles or not at all during the whole process.

A: Yes, heavy weight training, slow weight loss, and relatively high-protein diet (at least 1 gram of protein per pound of bodyweight daily) are essential for successful fat loss while preserving muscle -- which ensures that fat doesn't come back later. But there's more to a successful fat loss program... You can't ignore carbs and fats entirely -- both are needed in your diet and you should aim to get roughly equal amount of calories from all three throughout the day. You need to make healthy choices in food -- there're good carbs and bad carbs and same thing for fats. As far as weight training you need to make sure you train your whole body and make sure you don't overdo it -- overtraining will lead to injuries and lack of progress.