Timing Protocol
When to Take GLP-1 Agonists — Expert Timing Protocols
Expert-analyzed timing recommendations for glp-1 agonists based on what top longevity researchers say about when, how, and what to take it with.
Quick Timing Guide
Once-weekly injection. No specific time-of-day requirement. Must be combined with strength training and high protein intake (minimum 1g per pound of lean body mass) to mitigate muscle loss (Attia).
Moderate Consensus
on GLP-1 Agonists overall
Full Protocol
Timing
Once-weekly injection. No specific time-of-day requirement. Must be combined with strength training and high protein intake (minimum 1g per pound of lean body mass) to mitigate muscle loss (Attia).
Dosage
Doses are escalated slowly over months to limit GI side effects — semaglutide from 0.25mg up to 2.4mg/week, tirzepatide from 2.5mg up to 15mg/week. See the week-by-week titration schedule below. Dosing is individualized by a prescribing physician (Attia).
Form
Injectable (subcutaneous, once weekly) remains the mainstay and still leads on peak efficacy. Oral GLP-1s are now FDA-approved too — oral semaglutide (the Wegovy pill, Dec 2025) and the non-peptide orforglipron (Apr 2026). Some clinicians use compounded peptide formulations at lower doses (Attia, Koniver).
Notes
This is a prescription medication — not a supplement. Requires physician oversight, regular monitoring via DEXA scans for body composition, and blood work. Compounded versions from reputable pharmacies may offer lower-dose options. High cost remains a significant barrier to access (Attia). Hyman strongly advocates addressing diet and lifestyle first before considering pharmaceutical intervention.
Expert Positions
What Each Expert Says About Timing
Huberman covers GLP-1 agonists across multiple contexts: hunger neuroscience, peptide therapy, and fat loss protocols. He features Dr. Zachary Knight (UCSF) explaining the mechanism of GLP-1 drugs, their origin from Gila monster venom, and the evolution from short-acting to long-acting forms. He discusses how GLP-1 acts on brain stem and hypothalamic circuits to suppress appetite. In peptide therapy episodes, Dr. Craig Koniver discusses micro-dosing semaglutide and tirzepatide to mitigate side effects. Huberman also frequently mentions yerba mate as a natural GLP-1 stimulator for fat loss.
Unlock the Full Picture
Go beyond the consensus — see exactly what each expert says about glp-1 agonists.
- Per-expert timing protocols & reasoning
- Interaction warnings & disagreements
- Video citations with timestamps