Conclusion: OEA also exerts satiety-inducing effects by activating the hedonic dopamine pathways and increasing homeostatic oxytocin and brain histamine. In conclusion, OEA may be a key component of the physiological system involved in the regulation of dietary fat consumption and energy homeostasis; therefore, it is suggested as a possible therapeutic agent for the management of obesity.
PubMed 31868943 ↗Oleoylethanolamide
People mainly take Oleoylethanolamide for appetite. Based on 4 first-hand reports and 6 meta-analyses & systematic reviews in the medical literature. Ranked #2266 of 3,539 overall.
Of reports that state an outcome, 100% are positive.
What Oleoylethanolamide does, according to users
Of the people who reported each effect, the share who said it got better.
What the research says
Systematic reviews and meta-analyses from PubMed, with their published conclusions.
3+ meta-analyses or systematic reviews and 10+ randomized controlled trials in humans. The grade measures how much human research exists — read the conclusions below for what it found.
Conclusion: Supplementation with OEA may help improve glycemic control, weight loss, waist circumference, fat mass, fat percentage, inflammation, and oxidative stress. However, further research is needed to establish definitive conclusions regarding its efficacy and long-term benefits.
PubMed 40469682 ↗Conclusion: In summary, many beneficial effects of OEA have led to the understanding that OEA may be an effective therapeutic strategy for the management of NAFLD. Although a wide range of studies have demonstrated the most useful effects of OEA on NAFLD and the associated risk factors, further clinical trials, from both in vivo studies and in vitro experiments, are warranted to verify these outcomes.
PubMed 31111657 ↗Conclusion: Other proposed mechanisms include the prevention of the nucleotide-binding oligomerization domain-like receptor 3/caspase-1 inflammasome pathway, the induction of oleoylethanolamide synthesis, and possibly the downregulation of stearoyl-CoA desaturase 1 activity. In summary, current findings lend support to advice not restricting consumption of OA-rich meals so as to maintain a healthy body weight.
PubMed 32135008 ↗Dosage people report
As stated by users — not a recommendation. Follow the label or your doctor.
Reported side effects
How often each side effect came up across all reports.
What users say
First-hand experiences, quoted verbatim. We show one positive and one negative where both exist.
“I experience an appetite decrease, mild but useful, IME. Not a stimulant, it’s a PPAR agonist.”
“I’ve also found Oleoylethanolamide to be a helpful non-stimulant appetite suppressant”
Other options for appetite
User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 3, 2026. How we rate