Subjective Outcome

Peptides for appetite

5 compoundsin Regimen’s catalog are configured to track appetite via Rate Today. Each one shows the dose range, listed benefits, and every outcome it’s set up to monitor. Tap through to plan a dose with the free reconstitution calculator.

Why appetite-suppressing peptides work

Appetite is regulated by a network of hormones — ghrelin (hunger), leptin (satiety), GLP-1, PYY, and CCK (post-meal satiety) — that converge on the hypothalamic arcuate nucleus. GLP-1 receptor agonists work by amplifying the satiety arm: they bind to GLP-1 receptors in the brain, slow gastric emptying, and reduce reward-driven eating by acting on dopaminergic pathways in the ventral tegmental area.

The clinical effect is large. In STEP 1, semaglutide reduced ad libitum caloric intake at a buffet meal by roughly 24% versus placebo. Users typically describe it as a quieting of food noise rather than nausea-driven aversion. Cagrilintide (an amylin analog) and the tirzepatide GIP/GLP-1 dual action add additional appetite-modulating pathways.

For people who want appetite suppression without the GI side-effect profile of injectable GLP-1s, oral GLP-1s (Rybelsus) and lower-dose titration protocols offer alternatives. Older anorectic peptides (MOTS-c, AOD-9604) have weaker effect sizes and are typically adjunctive rather than primary.

Anchor citation: Friedrichsen M et al.. Effect of Semaglutide on Appetite, Energy Intake, and Eating Behavior. Diabetes, Obesity and Metabolism, 2021.

Compounds in Regimen tracked for appetite

5 compounds

Semaglutide

GLP-1 Receptor Agonist

GLP-1

A once-weekly GLP-1 receptor agonist for weight management and metabolic health.

  • Significant and sustained weight loss
  • Improved blood sugar regulation
  • Reduced cardiovascular risk markers

Tracks

WeightBMIAppetiteGlucose

Tirzepatide

GIP / GLP-1 Dual Agonist

GLP-1

A once-weekly dual GIP and GLP-1 receptor agonist delivering superior weight loss and metabolic improvements compared to GLP-1 monotherapy.

  • Greater average weight loss vs. semaglutide
  • Improved blood sugar control
  • Reduced appetite and cravings

Tracks

WeightBMIAppetiteGlucose

Liraglutide

GLP-1 Receptor Agonist (Saxenda / Victoza)

GLP-1

Daily injectable GLP-1 receptor agonist FDA-approved for type 2 diabetes (Victoza, up to 1.8 mg/day) and chronic weight management (Saxenda, up to 3.0 mg/day). Slows gastric emptying, increases satiety, improves glycemic control, and reduces cardiovascular events in T2D.

  • Sustained weight loss
  • A1C reduction in T2D
  • Appetite suppression and reduced food cravings

Tracks

WeightBMIAppetiteGlucose

Retatrutide

GIP / GLP-1 / Glucagon Triple Agonist

GLP-1

Tracks

WeightBMIAppetite

Cagrilintide

Long-Acting Amylin Analog

GLP-1

Tracks

WeightBMIAppetite

Frequently asked questions

Which peptides suppress appetite most strongly?

Tirzepatide produces the largest reduction in self-reported hunger scores in head-to-head trials, followed by semaglutide and liraglutide. Cagrilintide is added to semaglutide in the CagriSema combination to extend the satiety effect. Retatrutide, currently in phase 3, shows the strongest early signal but is not yet approved.

How long does appetite suppression last after a weekly injection?

Semaglutide and tirzepatide both have half-lives near a week (semaglutide ~165 hours; tirzepatide ~120 hours), which is why they are dosed once weekly. Steady-state levels are reached after 4–5 weeks. Most users notice a gradual day-to-day rise in hunger toward the end of the week between doses 1–3, which smooths out once steady state is reached.

Will appetite return if I stop the peptide?

Yes. Discontinuation studies (STEP 4, STEP 1 follow-up) show that hunger and caloric intake return to baseline within months of stopping, and most of the weight regains within a year unless the protocol is replaced with structural lifestyle change. Maintenance dosing — a lower dose continued long-term — is the standard mitigation.

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Other outcomes