The bodybuilding secrets of the pro's are something that all amateurs would like to get their hands on. For some, muscle seess to pile on whilst others stay for years to gain even a little extra mass.
The truth of the matter is that most pro bodybuilders have great genetics for building muscle. Most are easy gainers and have the mesomorphic body type. That's not to say, however, that they have not worked hard to achieve the results that they have. No one can get that big without hard work and dedication.
There is no magic pill that will make you massive overnight. The fact is, the bodybuilding secrets of the pro's is more science than some mystical secret known only to a select few.
Pro bodybuilders know their bodies inside out, they can fine tune their physique, seemingly at will, to tone up for a competition. Pro's know more about nutrition and what it takes to eat for muscle than most qualified dieticians.
Now, here's the real secret. There is no secret.
As a natural bodybuilder, there is nothing that you can take to increase your lean muscle mass. Hard work, dedication and a little knowledge coupled with dedication and self motivation is the only way to progress.
Learn about nutrition. Nutrition is probably the most important part of muscle building, other than the training of course. You must also learn to train for your body type. Training will be different for Ectomorphs (skinny), than Endomorphs (stocky) or Mesomorphs (athletic).
So in conclusion, Learn to eat the correct things and find out what your body type is and train accordingly. If you do this then the bodybuilding secrets of the pro's will be yours.