2025 Frontiers study: Restored mtDNA in aging cells, extending lifespan 15%
However, in addition to the known short-term side effects, Dr Kauser warns that, due to the fact it is unregulated, the long-term side effects remain largely unknown
Because GLP-1s reduce appetite and overall calorie intake, some people may experience muscle loss if they are not strength training
Additionally, its efficacy for treatment of type 2 diabetes is at least comparable to tirzepatide (Table 2)
Although some experienced minor side effects like nausea or constipation, none found these problematic enough to discontinue treatment

Decision framework: Start existing treatments (semaglutide or tirzepatide) if: Your health risks from obesity are significant and immediate (uncontrolled diabetes, severe sleep apnea, cardiovascular disease) You have access to approved therapies through insurance or can afford them You need proven, FDA-approved medications with established safety profiles Waiting 1-2+ years for retatrutide approval doesnt align with your health timeline Consider waiting if: Youre currently at a stable weight with controlled health conditions Youve tried semaglutide or tirzepatide and hit a plateau but tolerated them well Youre in a position to potentially enroll in a retatrutide clinical trial You understand waiting means continued health risks from obesity Dont wait if: You think retatrutide will be a magic bullet with no downsides Your doctor is recommending treatment now for medical reasons Youre using waiting for the next best thing as an excuse to avoid addressing the problem The lifestyle component is non-negotiable regardless of which medication you use: High protein intake (0.7-1g per pound of body weight daily) to preserve muscle during weight loss
