Hemp seed fat is approximately 80 percent polyunsaturated. The major fatty acids are linoleic acid (omega-6, 55 percent of total fat), alpha-linolenic acid (ALA, omega-3, 17 percent), oleic acid (omega-9, 11 percent), and gamma-linolenic acid (GLA, 3 percent). The combined effect is a balanced omega-6 to omega-3 ratio of approximately 3:1.
Why the 3:1 ratio matters
North American dietary patterns typically deliver omega-6 to omega-3 ratios between 10:1 and 20:1, driven by industrial seed oil consumption. The biochemical pathways processing these two fatty acid families compete for the same enzymes, particularly delta-6 desaturase. Excess omega-6 intake can suppress the body's conversion of plant omega-3 (ALA) into the longer-chain EPA and DHA forms that play roles in cardiovascular and neurological function.
Hemp seed's 3:1 ratio is closer to the dietary patterns observed in populations with low rates of inflammatory disease. Including hemp seed regularly is one mechanism for moving the ratio in that direction without dramatic dietary overhaul.
Gamma-linolenic acid (GLA) specifics
GLA is an omega-6 fatty acid produced in the body from linoleic acid through delta-6 desaturation. Some individuals have impaired conversion (due to genetics, age, diabetes, or chronic illness) and may benefit from direct dietary sources. GLA is rare in foods. Hemp seed, evening primrose oil, borage oil, and blackcurrant seed oil are among the few significant sources.
A 30 gram serving of hemp seed provides approximately 400 milligrams of GLA. This is a meaningful amount for daily consumption, though substantially less concentrated than the GLA found in specialised supplements (evening primrose oil typically delivers ~1,000 mg per dose).
How heat affects the fat profile
Polyunsaturated fats contain multiple carbon-carbon double bonds. Each bond is a potential site for oxidation under heat, light, or air exposure. Cooking hemp seed at high temperatures degrades the omega-3 fraction more rapidly than the omega-6 or oleic acid fractions, gradually shifting the ratio away from the desirable starting point. For nutritional purposes, hemp seed is best consumed raw or warmed gently rather than fried or roasted hard.
Comparison to other plant fats
| Source (per 30 g) | Omega-3 (g) | Omega-6 (g) | Ratio 6:3 | GLA |
|---|---|---|---|---|
| Hulled hemp seed | 2.5 | 8.0 | 3:1 | ~400 mg |
| Ground flaxseed | 6.5 | 1.7 | 1:4 | None |
| Chia seed | 5.0 | 1.7 | 1:3 | None |
| Almonds | 0.0 | 3.6 | n/a | None |
| Walnuts | 2.7 | 11.0 | 4:1 | None |