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Goal guide

Best compounds
for fat loss

Ranked by evidence quality and realistic effect size. No magic pills — but some compounds meaningfully change the equation.

Honest baseline

No compound replaces a caloric deficit. Every compound on this list works better when combined with proper nutrition and training. That said, some of these meaningfully change body composition outcomes — especially for people who have hit a plateau or are dealing with metabolic issues.

1

Semaglutide

IntermediatePrescription required

Ozempic, Wegovy, GLP-1 agonist

The most powerful fat loss compound available. FDA approved. 15-20% body weight reduction in trials. Requires prescription but the evidence is unmatched.

Best for: Significant fat loss, appetite control

2

Creatine Monohydrate

Beginner

Creatine, Cr

Counterintuitive but true — creatine preserves lean muscle during a cut, which keeps your metabolism higher and makes the fat you lose actually fat, not muscle.

Best for: Preserving muscle during caloric deficit

3

Berberine

Beginner

Berberine HCl, Nature's Ozempic

Activates the same pathway as metformin. Improves insulin sensitivity, reduces fat storage, and has real evidence for modest fat loss at therapeutic doses.

Best for: Metabolic health, insulin resistance, modest fat loss

4

RAD-140

Intermediate

Testolone

Preserves and builds muscle in a caloric deficit, allowing you to cut harder without losing lean mass. Not a direct fat burner but dramatically improves body composition during a cut.

Best for: Body recomposition, muscle preservation while cutting

5

AOD-9604

Intermediate

Anti-Obesity Drug 9604, HGH Fragment

HGH fragment specifically targeting fat cells without raising blood sugar. Modest effect size in humans but one of the cleaner fat-targeted peptides available.

Best for: Targeted fat loss, no glucose impact

6

L-Citrulline

Beginner

Citrulline Malate

Improves training performance and endurance during a caloric deficit when energy is low. More reps, better cardio sessions, more calories burned.

Best for: Training performance while cutting

The beginner fat loss stack

Start here before anything else. Creatine, berberine, and citrulline are all legal, inexpensive, and have real evidence behind them. Get these dialed in before considering SARMs or peptides.

Legal stack:

Creatine: 5g/day any time

Berberine: 500mg 3x/day with meals

L-Citrulline: 6-8g 30min pre-workout

100% legal · No PCT · No bloodwork required

What about Cardarine?

Cardarine (GW-501516) is frequently mentioned in fat loss discussions because it dramatically increases endurance and fat oxidation. We deliberately left it off this ranked list. GlaxoSmithKline abandoned it in Phase 2 trials after it caused rapid tumor growth in animal studies. The human safety data is essentially zero. The endurance benefits are real, but the risk profile is genuinely concerning in a way that separates it from every other compound on this page. Read the full breakdown before considering it.

Disclaimer: For educational purposes only. Several compounds on this page are research chemicals not approved for human use. Semaglutide requires a prescription. Consult a healthcare professional before starting any compound.

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