About 20 years ago I did my first cycle. At the time the guys in the gym were taking amino acid pills to make sure they were getting enough protein. They were supposed to be pre digested and you were getting just the amino acids after they were broken down. At the time I thought that they didn’t have any calories...like you were taking vitamins. All of the amino acid tablets I have found on the market today have calories. Is something different about the products available today or did the ones I took 20 years ago have calories too, and we just didn’t know it?