Palmitoylethanolamide (PEA) is a lipid molecule your body produces on its own as a built-in response to pain, injury, and inflammation. It belongs to a family of fatty acid compounds that act like internal peacekeepers, telling overactive immune and nerve cells to settle down. When the body's own production isn't enough to manage ongoing pain or inflammation, supplementing with PEA can give that system a meaningful boost.

PEA works mainly by activating a receptor inside cells called PPAR-alpha, which switches on genes that reduce inflammation and calm nerve sensitivity. It also helps quiet mast cells — the immune cells that trigger pain and swelling — and supports the body's own endocannabinoid system without directly activating cannabis-type receptors. The result is less pain signaling, less tissue inflammation, and calmer nerve activity, particularly in areas of chronic irritation.

Ultramicronized (um-PEA) and micronized (m-PEA) forms are strongly preferred over standard PEA — they absorb far better and are the forms used in most clinical research. Capsules and tablets are most convenient for daily use. Topical formulations are used for localized joint or skin pain. Powder forms can be mixed into food or drinks.

• Chronic nerve pain (neuropathy)
• Fibromyalgia
• Lower back pain
• Sciatica
• Osteoarthritis pain
• Chronic pelvic pain
• Carpal tunnel syndrome
• Sleep problems linked to pain
• Inflammation and immune overreaction
• Dental and jaw pain (TMJ)

• Progression of nerve damage when used early in neuropathic conditions
• Recurrence of pelvic pain symptoms in endometriosis (when used as maintenance therapy)

• Egg yolk — One of the original identified dietary sources of PEA — egg yolk contains detectable amounts of palmitoylethanolamide, though far below therapeutic supplement doses.
• Peanuts and peanut oil — Historically noted as a source of PEA — peanut oil contains small amounts of the compound, consistent with early anti-inflammatory observations in the 1950s research.
• Soy lecithin and soy products — Soy-derived fats contain low levels of PEA and related fatty acid amides that support the same lipid signaling pathways.
• Fatty fish (salmon, mackerel, sardines) — Rich in long-chain fatty acids that support the same lipid signaling system as PEA and reduce neuroinflammation — a strong dietary complement to PEA supplementation.
• Flaxseed and hemp seed — These seeds provide fatty acid precursors that support endocannabinoid-adjacent signaling pathways, reinforcing PEA's anti-inflammatory mechanisms at the cellular level.

• Mild stomach upset or nausea (occasional, usually with high doses or on an empty stomach)
• Loose stools or mild digestive changes (rare)
• Mild headache in the first week of use (uncommon)
• Slight drowsiness in some users — usually temporary

• Recommended daily: 300–1200 mg per day; most clinical trials use 600 mg twice daily (1200 mg total) for pain conditions. Lower doses (300–600 mg/day) may suffice for general inflammation support.
• Best time of day: Twice-daily dosing is preferred — morning and evening — to maintain steady levels. Once-daily dosing is acceptable for lower maintenance doses.
• With or without food: Take with food, especially a meal containing some fat — PEA is a fat-soluble compound and absorbs better in the presence of dietary fat.
• Time to effect: Pain improvement typically begins at 2–4 weeks; maximum benefit usually seen by 8–12 weeks of consistent use
• How long to take it: Most clinical trials run 4–12 weeks. For chronic pain conditions, ongoing use appears safe and often necessary. No tolerance or dependency has been observed; cycling is not required but taking periodic breaks to reassess is reasonable.