UK Chief Medical Officers' guidelines recommend: Strength activities on at least 2 days per week, targeting major muscle groups to stimulate muscle protein synthesis and preserve lean tissue Cardiovascular activity for at least 150 minutes weekly of moderate-intensity exercise (or 75 minutes of vigorous activity) Daily movement and reducing sedentary behaviour to support overall energy expenditure Adequate protein intake is important for muscle preservation
For higher doses some users add 1mL of water instead, giving 10mg/mL, where 2mg = 20 units, 4mg = 40, and 8mg = 80, keeping every step inside one syringe
10.1016/j.ymben.2006.07.004 Zhu L, Dong H, Zhang Y, Li Y: Engineering the robustness of Clostridium acetobutylicum by introducing glutathione biosynthetic capability
But this glp one is hands down the absolute best
Serum NeurotrophinsA study on the time course and influencing factors in a large old age sample