The timeframe for B12 levels to increase following supplementation varies considerably depending on the severity of deficiency, route of administration, dosage, and individual absorption capacity
The drop in SHBG that drives more free testosterone into your bloodstream is, in part, driven by inflammatory chemicals released from belly fat downregulating a liver transcription factor called HNF4A
Always store tirzepatide in the refrigerator at the recommended temperature, and be mindful of how long it can be kept at room temperature
When stored correctly in the refrigerator, a reconstituted vial is generally stable for 30 to 60 days
The complete search strategy is available in the appendix
Ruiz-Pablos et al., 2021), FM (Duffy et al., 2022), and Long COVID (Shafiee et al., 2023), suggesting a possible shared pathological pathway