If you try and build muscle at the same time as you are losing fat, you are not going to get anywhere really on both of those goals. So what you need to do is do very short cycles of each going back and forth between the two. Where for example you are doing 5 days of muscle building, where you are eating more, your training is different, your training is geared towards building muscle and strength and then immediately after those 5 days you go straight into a fat loss diet kind of program, your training is very different, your calories are lower - I like to do low-carb eating when I do fat loss stuff just because it is a lot more effective, I find.
http://gmax-brasil.com/

why place link in another language and obviously about another issue entirely?