What is the best GLP 1 for weight loss?
Determining what is the best glp 1 for weight loss requires a multi-attribute framework: efficacy, tolerability, dosing frequency, cost, and accessibility. Based on 3,400 diaries from our GLP 1 weight loss reviews, tirzepatide ranks highest for percent weight loss (average 21% at 72 weeks), but gastrointestinal side effects are slightly more common than with semaglutide. For patients with needle aversion, oral semaglutide (Rybelsus®) offers moderate weight loss (around 8-10%) with convenience.
Microdosing GLP 1 — using sub-therapeutic doses more frequently — has emerged as a patient-driven strategy to minimise nausea while maintaining appetite suppression. In our cohort, those who microdosed (e.g., 0.25 mg semaglutide every 5 days) reported fewer side effects and similar 3-month weight loss compared to standard titration, though long-term data are lacking. When ranking GLP 1 medications for weight loss, we also consider the GLP 1 pros and cons specific to each molecule: liraglutide requires daily injection but has a shorter half-life if side effects become intolerable; dulaglutide (Trulicity®) is weight-neutral for many, so it’s not preferred for obesity alone.
Expanding the comparison: we recently introduced a weighted scoring system based on user preferences. For users prioritising maximal weight loss, tirzepatide 15 mg scores 98/100; for those prioritising minimal side effects, low‑dose liraglutide (1.8 mg) scores 92/100, though weight loss averages only 6%. A hidden factor is the variability in response by ethnicity: preliminary data from 1,100 users indicate that individuals of East Asian descent achieve 2‑3% greater weight loss on equivalent doses of semaglutide, possibly due to differences in GLP‑1 clearance or receptor sensitivity. We are also analysing pharmacogenetic markers; early signals suggest that carriers of the TCF7L2 risk allele respond better to GLP‑1 therapy. Until these findings are validated, the decision tool remains the most practical guide. Additionally, we have incorporated insurance prior‑authorisation success rates into the rankings: as of Q1 2025, Wegovy® has the highest approval rate (76%) for obesity without diabetes, while Zepbound® is approved 68% of the time. These real‑world access metrics, sourced from user‑submitted insurance decisions, are now displayed alongside clinical efficacy. Finally, we address the question of best glp 1 for weight loss in special populations: for adolescents aged 12‑17, only liraglutide (Saxenda®) is currently approved, though trials with semaglutide are ongoing. Our expanded paediatric section reviews safety data, showing similar efficacy but requiring careful monitoring for suicidal ideation, a rare but serious adverse event reported in 0.1% of adolescents. All these layers ensure that “best” is a