Gold Lean Mass from Levrone Signature Series delivers an impressive 70g of protein and 72g of carbohydrates per 200g serving, with only 12g of sugar, 12g of fat, and 676 calories. Notable features include 5g of creatine monohydrate, 1g each of d-aspartic acid, tribulus, and fenugreek, as well as MCT oil. This lean gainer allows for flexibility in adjusting serving sizes to meet individual needs. D-aspartic acid, a naturally occurring amino acid, has shown potential in supporting testosterone levels, as evidenced in a 2010 study.