Studies show the consuming an excessive amount of vitamin B12 may: Increase the risk of cardiovascular events in people with diabetic nephropathy : A study published in JAMA sought to determine whether B vitamin therapy was able to slow the progression of diabetic nephropathy (kidney damage due to diabetes) and prevent vascular complications
If you have high homocysteine , you may want to re-check your homocysteine levels after a month or two of riboflavin supplementation to see if it is lower
Additionally, if you're taking vitamin B12, some medicines can interfere with your ability to digest it, including: Aminosalicylic acid (Paser), used to treat digestive problems Colchicine (Colcrys, Mitigare, Gloperba) is an anti-inflammatory medicine used to prevent and treat gout Proton pump inhibitors (Prilosec, Prevacid) are used to reduce stomach acid Metformin (Glumetza, Fortamet, others), used to treat diabetes Vitamin C supplements QUESTION See Answer What are the warning signs of vitamin B12 deficiency
These outcomes reflect observed biomarker and pathway changes under controlled conditions and are not established therapeutic claims