First thing in the morning on an empty stomach With no more than 4 ounces of plain water With no food, drink, or other medications for at least 30 minutes afterward Swallowed whole, without crushing or splitting The reason for these rules is that oral absorption of the medication is tricky thats why it took so long for a pill to be available, says Dan Azagury, MD, a weight loss physician and bariatric surgeon at Stanford Medicine in Palo Alto, California
There is also some limited evidence suggesting that individuals who carry certain polymorphisms in genes involved in vitamin C transport and detoxification mechanisms may have lower plasma vitamin C concentrations even with high vitamin C intakes (see also Vascular complications of diabetes mellitus) (reviewed in 27)
GLP-1s are not started at full strength
Diabetologia 61:21082117 Ganbaatar B, Fukuda D, Shinohara M, Yagi S, Kusunose K, Yamada H, Soeki T, Hirata KI, Sata M (2020) Empagliflozin ameliorates endothelial dysfunction and suppresses atherogenesis in diabetic apolipoprotein E-deficient mice