Initial pre-induction stages utilize compounds like nicotinamide, -mercaptoethanol, and retinoic acid, followed by exposure to high-glucose Dulbeccos Modified Eagle Medium (DMEM) supplemented with growth factors such as activin A, hepatocyte growth factor (HGF), or epidermal growth factor (EGF)
Transforming growth factor-beta activation of phosphatidylinositol 3-kinase is independent of Smad2 and Smad3 and regulates fibroblast responses via p21-activated kinase-2
and Tyler et al
However, this is extremely rare, especially in otherwise healthy people ( Summary Consuming too much vitamin C may increase the amount of oxalate in your kidneys, which has the potential to lead to kidney stones
Ultimately, the choice depends on your goals and access to treatment options
As effort climbs or duration extends past three hours, most athletes transition to gels which require less digestive effort