I'm new to the world of bodybuilding and I had heard this nutritional term called Macro. And that if I stick to a 40/30/30 I will loose weight and build muscle. I'm 27 years old and weigh in at 230lb. I'm at around 21% body fat. My goals are to loose weight gain muscle and be at around 10% body fat, possibly weigh around 182-190. I Jane already started going to the gym for weight training and on my off days I do HIIT training with the Insanity DVD's. any help with nutrition would be a big help.