glp 1 semaglutide vs tirzepatide The 2026 Brandon GLP-1 Report: vs. - Cost & Beating 'Ozempic Fatigue' Semaglutide vs Tirzepatide, same medication

When deficiency is suspected based on clinical features (fatigue, paraesthesia, cognitive changes) or risk factors (vegan diet, gastric surgery, certain medications), serum B12 measurement guides appropriate intervention

Alcohol & stress: Limit alcohol (its metabolism consumes NAD+) and manage stress, since chronic stress activates PARPs that deplete NAD+ pools

A recent meta-analysis published in The Lancet Diabetes & Endocrinology found that the benefits of SGLT2 inhibitors on heart and kidney health were consistent even in patients already taking a GLP-1 RA

Prevent deficiencies Watch for low iron, vitamin D, B12, folate