High risk and low prevalence diseases: metformin toxicities
Since they use separate metabolic routes, the risk of one drug preventing the other from working properly is low
That dual action changes how you eat, store fat, and manage blood sugar in ways that directly touch aging biology: Improves insulin response when you eat, while dialing down glucagon so your liver stops overshooting glucose
During the past 30 years, dietary supplementation with carnitine has been widely used in order to enhance lipid oxidation and increase exercise performance. Stephens, FB, et al, New insights concerning the role of carnitine in the regulation of fuel metabolism in skeletal muscle in The Journal of Physiology , Volume 581, Part 2, June 2007, pp 431 - 444
The biomarker is present (or increased compared to control) when severe food preoccupation occurs more frequently and is absent (or indistinguishable from control) when severe food preoccupation occurs less frequently