Omega-3 Fatty Acids for Leptin Sensitivity
Omega-3 reduces the inflammation implicated in hypothalamic leptin resistance, though appetite effects are inconsistent.
Overview
Verdict
How It Works
Dosing & Protocol
Typical dose
- Recommended dose
- 1-2 g combined EPA and DHA daily
- Expected timeframe
- Not established
Protocol
- form
- Fish oil or algal oil
- duration
- 8-12 weeks in the trials that measured leptin
- co factor
- Take with meals if used for other reasons. Evidence is mixed and preliminary. Human trials measuring circulating leptin with omega-3 supplementation have produced inconsistent results - some report reductions, some no change, and some increases, with meta-analyses concluding no reliable effect and noting that changes largely track changes in fat mass rather than any independent action. Leptin sensitivity itself is the more relevant concept, since obesity is characterised by high leptin with resistance to its signal rather than deficiency, but leptin sensitivity cannot be measured directly in people - there is no clinical assay. Animal work suggests omega-3 may reduce hypothalamic inflammation implicated in leptin resistance, which has not been demonstrated in humans.
- titration
- Not applicable given inconsistent results
- starting dose
- Not established for this outcome. Trials used 1,000-4,000 mg/day EPA+DHA
Evidence
What the studies say
Effect of omega-3 supplementation on serum leptin: a systematic review and meta-analysis of randomized controlled trials
Bertrand C, Pignalosa A, Wanecq E +1 more
Omega-3 supplementation produced a small reduction in circulating leptin
Safety
Caveats
Do not expect appetite suppression as a primary effect.
Less likely to help if
Medical Disclaimer
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Individual results may vary. The statements on this website have not been evaluated by the Food and Drug Administration. Products and information are not intended to diagnose, treat, cure, or prevent any disease.