Not yet, and the gap is specific
Monitoring Weeks 1-2 : Energy, sites 3-4 : Composition, sleep 5+ : Progress, markers Optimal signs : Steady energy, fat loss, performance gains, no jitters
Either deviation changes your dose
in Cell Metabolism note that SIRT1 activation improves mitochondrial efficiency and promotes a shift toward lipid utilization for energy, which can be especially beneficial in endurance and fat-loss settings (Price et al., Cell Metabolism )
Long-term follow-up from the ORATORIO trial of ocrelizumab for primary progressive multiple sclerosis: a post-hoc analysis from the ongoing open-label extension of the randomised, placebo-controlled, phase 3 trial
However, neither one of these things have specifically been shown to