Hemp Seed

Hemp seed is the edible product of the hemp plant — the small (3–5mm), greenish-brown, oval seeds borne in dense clusters on the female flowering tops. Botanically each seed is an achene — a small dry single-seeded fruit with a hard outer shell (the pericarp) enclosing a single soft embryo. Sold whole, with the shell intact (giving a crunchy texture similar to a [[sunflower|sunflower]] seed), or as hemp hearts — the shelled embryos, with a soft texture similar to a pine nut and a mild nutty flavor.

Hemp seed has been continuously cultivated for food across Eurasia for at least 6,000 years. The Chinese Shennong Bencaojing (compiled c. 200–250 CE but recording substantially older tradition) lists hemp seed as one of the five grains. Russian, Eastern European, and Central Asian peasant cuisines have used hemp seed continuously through the modern era. The North American interruption (1937–2018) under industrial-hemp prohibition was an aberration; the global tradition was unbroken.

Nutritional profile

A typical 30g serving of hemp hearts (approximately 3 tablespoons) provides:

• Protein: ~10g, complete (containing all nine essential amino acids in proportions comparable to egg). Substantially higher protein density than most plant seeds and grains.
• Fat: ~14g, predominantly polyunsaturated. The fatty-acid profile is the principal nutritional distinction — approximately 50–60% linoleic acid (omega-6), 15–25% alpha-linolenic acid ([[omega-3-fatty-acids|omega-3]]), 1–4% gamma-linolenic acid (GLA, an unusual fatty acid with documented anti-inflammatory effects), and the remainder mostly monounsaturated. The [[omega-3-fatty-acids|omega-3]] to omega-6 ratio is approximately 1:3 — the closest to the human-physiologically-optimal 1:1 to 1:4 range of any common plant oil. Most other vegetable oils (sunflower, corn, soy) are dramatically skewed toward omega-6.
• Fiber: ~1g shelled, ~4g whole.
• Minerals: Substantial magnesium (~210 mg, ~50% RDA), iron (~3 mg), zinc (~3 mg), phosphorus, manganese.
• Vitamins: Vitamin E, B vitamins (especially B1, B6, niacin), folate.
• No cannabinoids in meaningful amounts. THC and CBD are produced in the glandular trichomes of the flowers and leaves; trace contamination from the harvest process is typically <1 ppm and is not psychoactive.

How it’s eaten

A non-exhaustive map:

• Hemp hearts. Sprinkled on salads, oatmeal, yogurt, smoothies; eaten by the spoonful as a snack; baked into granola, crackers, energy bars; ground into pestos and dressings.
• Whole hemp seed. The shell is edible but crunchy; whole seed is harder on the teeth than shelled. Used principally in baking and as bird/animal feed.
• Hemp protein powder. Defatted ground seed; used as a protein supplement in shakes and baked goods. Lower digestibility than whey or soy protein but acceptable to many people who do not tolerate those alternatives.
• Hemp milk. Hemp hearts blended with water and strained — a plant-based milk alternative with a distinct nutty flavor.
• [[hemp-seed-oil|Hemp seed oil]]. Cold-pressed; principally used as a finishing oil (high heat damages the omega-3s). See [[hemp-seed-oil]] (planned).
• Sprouted hemp seed. Increases bioavailability of some nutrients; less common but used in certain raw-food contexts.

Production and yield

Hemp grain yields typically range from 500–2000 kg/ha depending on variety, conditions, and management. The seed is harvested from the top of the plant (where the female flowers cluster) using modified combines; the rest of the plant (stalk, leaves) can be processed for fiber/hurd or returned to [[soil|the soil]].

A few notes on production economics:

• Cultivation. [[hemp|Grain hemp]] is grown at lower density than fiber hemp (10–40 plants/m² vs 200–300) on shorter-statured branching varieties. See [[hemp-cultivation]].
• Yield per acre vs. comparable crops. Hemp seed is competitive with or superior to [[soybean|soybean]] on protein-per-acre and substantially more nutritionally complete.
• Storage. Hemp seed is high-fat and oxidizes faster than many seeds. Storage in cool, dark conditions extends shelf life; commercial hemp hearts are typically refrigerated after opening.
• The processing chain. Cleaning, dehulling (for hemp hearts), and packaging require specialized equipment. North American hemp-grain processors are concentrated in Canada (Manitoba, Alberta) and have grown in the U.S. since 2018.

What this gives the platform

Hemp seed is among the most directly [[mission-district-sf|mission]]-aligned foods available:

• Complete plant protein. Solves the principal nutritional question that plant-based food systems must address.
• Excellent omega ratio. Addresses the inflammation issue caused by the contemporary omega-6-dominant industrial food system.
• Easy to grow. Compatible with [[regenerative-agriculture|regenerative agriculture]]; can be grown across most of temperate North America without irrigation in normal years.
• Long-storing in proper conditions. Suitable for [[0mn1one|the platform]]‘s distributed-food-resilience work.
• Stackable agriculture. [[hemp|Grain hemp]] can be grown alongside fiber/hurd production (dual-purpose varieties), giving farmers multiple revenue streams from a single crop.

See also

Auto-generated from this entry’s typed relations: frontmatter, grouped by relation type so the editorial signal isn’t flattened.

• Subset of: [[hemp]]
• Member of: [[food]]
• Supersets: [[hemp-seed-oil]]

Sources

1. Hempseed: A Modern Source of Health-Beneficial Bioactive Compounds. J.C. Callaway et al. Various peer-reviewed publications on hemp seed nutrition. Source class: scholarly literature.
2. James Lawrence. The Hemp Cookbook. HOHM Press, 1998 (rev. 2017). Source class: book / cooking and culinary engagement.
3. Functional Food Reviews — hemp seed nutritional surveys, multiple. Source class: scholarly literature.
4. Hemp Industries Association. https://thehia.org. Source class: institutional / continuing trade body.

Lenses still to grow

• [[hemp-seed-oil|Hemp seed oil]] as a separate substantial topic.
• The complete-protein question — amino acid digestibility-corrected score (PDCAAS) details.
• Comparative analysis vs. flax, chia, pumpkin seed, [[sunflower|sunflower]] seed.
• Storage and rancidity as practical concerns.
• Hemp protein powder as separate product.