l carnitine vs coq10 CoQ10, L-Carnitine, Magnesium – Swanson Vitamins Nature's Lab Gold CoQ10, Alpha

Impaired iron homeostasis plays a role in the pathogenesis of various diseases by triggering ferroptosis, with recent reports implicating transferrin and its cell surface TFR1 as key regulators of ferroptosis [33]

And that's what a lot of athletes are using BBC157 for that use

(Source 3) 4

There doesn't appear to be an optimal time to supplement with carnosine as its benefits are primarily realized only when serum levels are increased

6.4 Protein requirements: muscle repair and glycemic control The protein requirement, which is mostly dependent on whole-body assessments of protein metabolism, can be described as the minimum daily protein intake necessary to satisfy the metabolic demands of the body which includes the maintenance of body composition. The protein suggestion, on the other hand, is based mostly on tissue-specific (mostly skeletal muscle) assessments of muscle metabolism and can be described as protein strategies to optimize performance in athletes by facilitating training adaptation and/or accelerating recovery (97)

References Miller FW