These warnings, as well as knowledge of the negative secondary ocular outcomes in the large diabetes clinical trials, likely play a role in the referrals to eye clinics for retinal examinations from internists
Shu X, Zhou Q, Sun X, Flesaker M, Guo X, Long J
With respect to hepatotoxicity, animal studies have demonstrated that high doses of quercetin can markedly elevate serum transaminase levels and induce lipid peroxidation as well as glutathione depletion in hepatic tissues (Singh et al., 2021), indicating that excessive quercetin intake may contribute to hepatocellular injury by activating oxidative stress pathways
The takeaway is that B12 injections are usually considered very safe, and side effects are uncommon when used appropriately
If you want maximum fat loss, combining both can be highly effective (with medical supervision)
For persistent or worsening symptoms, consult our healthcare team for personalized care and potential underlying causes