Fat Loss Research Program
This is an educational summary of research areas relevant to this goal. SmartPeptide does not prescribe peptides or recommend dosages. Always consult a licensed healthcare provider.
Educational only — not medical advice. SmartPeptide does not prescribe, diagnose, or treat. Always consult a licensed healthcare provider before using any peptide, supplement, medication, or protocol.
Evidence landscape
Aggregated across all 11 peptides in this categoryTop-ranked in this category
Goal
Educational overview for fat loss research program.
Research overview
Research overview compiled from publicly available abstracts and reviews. Quality of evidence varies — some peptides have only preclinical data.
All 11 peptides in this category
Ranked by evidence quality: strongest human evidence first, preclinical and anecdotal last.
- SemaglutideStrong human clinical evidence
GLP-1 receptor agonist with extensive Phase 3 trial data for type 2 diabetes and chronic weight management. Prescription-only in most jurisdictions.
- TirzepatideStrong human clinical evidence
Dual GIP / GLP-1 receptor agonist with strong Phase 3 evidence in type 2 diabetes (SURPASS) and obesity (SURMOUNT).
- LiraglutideStrong human clinical evidence
Daily GLP-1 receptor agonist (Saxenda/Victoza). FDA-approved for chronic weight management and type 2 diabetes. Older sibling of semaglutide with smaller weight-loss effect size.
- TesamorelinStrong human clinical evidence
GHRH analog (Egrifta) FDA-approved for HIV-associated lipodystrophy. Studied for visceral adiposity reduction outside that indication.
- RetatrutideLimited human evidence
Eli Lilly's triple agonist (GLP-1 / GIP / glucagon receptor). Currently the most potent weight-management investigational drug — Phase 2 trials reported ~24% body weight reduction at the highest dose. Phase 3 TRIUMPH program ongoing. Not yet FDA-approved.
- CagriSemaLimited human evidence
Novo Nordisk's once-weekly combination of cagrilintide (an amylin analog) and semaglutide. Designed to combine appetite suppression (semaglutide) with satiety + meal-size regulation (cagrilintide). REDEFINE-1 Phase 3 showed ~22.7% weight loss at 68 weeks — strong but below pre-trial expectations.
- OrforglipronLimited human evidence
Eli Lilly's once-daily ORAL non-peptide GLP-1 receptor agonist (LY3502970). The first oral small-molecule GLP-1 with no food/water restrictions (unlike Rybelsus). Phase 3 ACHIEVE program for diabetes and ATTAIN for obesity both ongoing.
- SurvodutideLimited human evidence
Boehringer Ingelheim / Zealand Pharma dual GLP-1 / glucagon receptor agonist (BI 456906). Strong Phase 2 obesity + MASH (liver) data. Phase 3 SYNCHRONIZE program ongoing across weight management, T2D, and liver disease indications.
- AOD-9604Limited human evidence
Modified fragment (amino acids 176-191) of the C-terminus of human growth hormone. Originally developed by Metabolic Pharmaceuticals as an anti-obesity agent. Failed to meet Phase 2 primary endpoints for weight loss. Repurposed as a research / supplement-market compound; in some jurisdictions classified as a food supplement.
- HGH Fragment 176-191Limited human evidence
Synthetic peptide corresponding to amino acids 176-191 of human growth hormone. Stripped of growth-promoting and glucose-modulating effects (theoretically). Originally developed under the AOD-9604 program (see related entry). Marketed as a 'pure lipolytic' but human-trial evidence for clinically meaningful weight loss is weak.
- 5-Amino-1MQAnimal / preclinical only
Small-molecule NNMT inhibitor (NOT a peptide — it's a quinoline derivative). NNMT (nicotinamide N-methyltransferase) is upregulated in obese white adipose tissue. Preclinical studies show 5-Amino-1MQ reduces adipocyte size and improves metabolic markers in obese mice. No human RCTs. Sold as a research chemical.
Lifestyle suggestions
Foundational lifestyle factors (sleep, nutrition, training, stress) often outperform any single intervention in published research.
Lifestyle factors (sleep, nutrition, training, stress) are foundational. SmartPeptide does not provide exact dosing instructions for any peptide.
Questions for your clinician
- What is the strongest human evidence for the peptides I'm considering?
- Which option here is FDA-approved vs. research-only?
- What baseline + monitoring labs would you recommend for my goal?
- What signs of harm or adverse reactions should I watch for?
- How will we measure benefit objectively?
- What's the exit criteria if it's not working?