Iron supplements cause a grayish-black stool that should be distinguished from the black, tarlike stool that occurs from bleeding ulcer
26 Third, a case study and case series of patients with ASD have reported elevations in acyl-carnitines, the standard biomarker for mitochondrial fatty-acid oxidation deficits
Massa SM, Yang T, Xie Y, Shi J, Bilgen M, et al
Hyperpigmentation inside the mouth due to low B12 levels may appear as bluish or dark discoloration
According to Kannt & Pfenninger in Frontiers in Physiology , NAD is a critical coenzyme in mitochondrial energy metabolism, and strategies that preserve NAD have wide-ranging effects on health and performance (Kannt & Pfenninger, Frontiers in Physiology )
Physiological levels of Glutathione will ensure better control over oxidative stress and the potential damage that free radicals can cause at the cellular level