Nutritional Value of Hemp Seeds: A Complete Nutrient Breakdown

Hemp seeds showing their nutritional value as a source of complete plant protein, omega fatty acids, magnesium and essential minerals.

You have seen them in a jar at the health store. Small, cream-coloured, priced like something precious, with "complete protein" on the front. The back lists numbers you have no easy way to weigh against your dal or your morning poha.

The nutritional value of hemp seeds is unusually high for a plant food. One hundred grams of hulled hemp seeds provides 31.6 g of protein containing all nine essential amino acids, 48.8 g of fat weighted towards omega-6 and omega-3, 700 mg of magnesium and 1,650 mg of phosphorus, according to USDA FoodData Central.

For context, ICMR-NIN set the 2020 protein RDA for healthy Indian adults at 0.83 g per kg of body weight, roughly 54 g a day for a 65 kg adult. A 30 g serving of hemp hearts covers close to a fifth of that on its own.

This article is for general information and is not medical advice. Speak to a doctor or registered dietitian before making significant dietary changes, particularly if you take prescribed medication.

What is the nutritional value of hemp seeds per 100 grams?

The nutritional value of hemp seeds per 100 g of hulled seed, per USDA FoodData Central (FDC ID 170148), is 553 kcal, 31.6 g protein, 48.8 g fat, 8.7 g carbohydrate and 4.0 g fibre, alongside 700 mg magnesium, 1,650 mg phosphorus, 1,200 mg potassium, 9.9 mg zinc and 7.95 mg iron.

The figures below are for hulled hemp seeds, sold as hemp hearts. Hulled means the fibrous outer shell has been removed, which concentrates protein and fat and lowers fibre.

A realistic serving is 30 g, roughly three tablespoons, so the right-hand column is the more useful one.

Nutrient

Per 100 g

Per 30 g serving

Energy

553 kcal

166 kcal

Protein

31.6 g

9.5 g

Total fat

48.8 g

14.6 g

Omega-6 (linoleic acid)

28.7 g

8.6 g

Omega-3 (alpha-linolenic acid)

9.3 g

2.8 g

Carbohydrate

8.7 g

2.6 g

Dietary fibre

4.0 g

1.2 g

Magnesium

700 mg

210 mg

Phosphorus

1,650 mg

495 mg

Potassium

1,200 mg

360 mg

Iron

7.95 mg

2.4 mg

Zinc

9.9 mg

3.0 mg

Manganese

7.6 mg

2.3 mg

Thiamine (B1)

1.275 mg

0.38 mg

Source: USDA FoodData Central, FDC ID 170148, hemp seed, hulled.

The rule of thumb worth carrying forward: hemp seeds are a fat-and-protein food with a mineral bonus, not a fibre food.

How much protein do hemp seeds contain, and is it a complete protein?

Hulled hemp seeds contain 31.6 g of protein per 100 g and supply all nine essential amino acids, meeting the definition of a complete protein. A 30 g serving delivers about 9.5 g, comparable to one and a half large eggs, with digestibility measured at 95 percent for dehulled hemp seed (House, Neufeld and Leson, 2010).

Most plant proteins fall short on one or more essential amino acids. Hemp seed does not, which is why it sits alongside soy and quinoa rather than with cereals and most nuts.

Digestibility matters more than the raw protein number. House, Neufeld and Leson measured 85 percent for whole hemp seed against 95 percent for dehulled in their 2010 paper in the Journal of Agricultural and Food Chemistry.

What is edestin, and why does it matter?

Edestin is one of the two main storage proteins in hemp seed, alongside albumin, and both are easily digested and contain nutritionally significant amounts of all essential amino acids (Callaway, 2004, in Euphytica). Edestin's globulin structure closely resembles proteins already found in human blood plasma, which supports its digestibility.

The practical upside is tolerance. Hemp seed protein contains very low amounts of the anti-nutritional factors found in several other plant proteins, and it is not a common food allergen. Hampa Wellness covers the chemistry in its guide to edestin protein in hemp seeds.

Which amino acid limits hemp protein quality?

Lysine is the first limiting amino acid in hemp seed protein, with an amino acid score of 0.62, followed by tryptophan at 0.87 and leucine at 0.94 (House, Neufeld and Leson, 2010). Hemp is a complete protein, but not a perfectly balanced one, and its PDCAAS sits below soy and dairy.

This is the part most hemp marketing skips. Complete means every essential amino acid is present, not that each is present in ideal proportion.

The fix is ordinary and cheap. Lysine is abundant in pulses, so hemp seeds stirred into dal, rajma, or curd close the gap without any planning.

What is the omega-6 to omega-3 ratio in hemp seeds?

The omega-6 to omega-3 ratio in hemp seed oil is normally between 2:1 and 3:1, which Callaway described in his 2004 Euphytica review as considered optimal for human health. Per 100 g, hulled hemp seeds supply 28.7 g of omega-6 linoleic acid and 9.3 g of omega-3 alpha-linolenic acid (USDA FoodData Central).

The ratio gets attention because modern diets skew heavily towards omega-6, largely through refined cooking oils. Hemp seeds are one of few whole foods that add both fats in a proportion researchers consider favourable.

One honest caveat belongs here. The omega-3 in hemp seeds is ALA, the short-chain form, and human conversion into long-chain EPA and DHA is limited, so hemp seeds are not a substitute for fish or an algal supplement. Hampa Wellness explains the mechanisms in its piece on omega fatty acids in hemp seeds.

What is GLA, and why is hemp unusual for containing it?

Gamma-linolenic acid, or GLA, is an omega-6 metabolite present in hemp seed oil at up to roughly 4 percent of total fatty acids (Callaway, 2004). Very few common dietary oils and seeds contain GLA at all, which makes hemp seed one of a small group of everyday food sources for it, alongside evening primrose and borage.

Research into what GLA does at dietary intake levels is still developing. Hemp seed is best treated as a source of a less common fatty acid rather than as a treatment for anything.

Which vitamins and minerals do hemp seeds actually deliver?

Hemp seeds deliver meaningful amounts of magnesium, phosphorus, manganese, zinc, iron and thiamine. A 30 g serving of hulled hemp seeds provides roughly 210 mg magnesium, 495 mg phosphorus, 3.0 mg zinc and 2.4 mg iron, according to USDA FoodData Central, a substantial contribution from a small volume of food.

Magnesium is where hemp seeds are difficult to beat. At 700 mg per 100 g they sit near the top of the list for common foods, and magnesium intake is frequently low in cereal-heavy diets.

Phosphorus and magnesium both contribute to normal bone structure, covered in Hampa Wellness's article on hemp and bone and joint health.

Two notes of realism. The iron is non-haem iron, absorbed less efficiently than iron from animal foods, so pair it with lemon or amla. And vitamin E content is real but unremarkable, so hemp is the wrong food to reach for if vitamin E is the goal.

Are hemp hearts and whole hemp seeds nutritionally the same?

Hemp hearts and whole hemp seeds are not nutritionally identical. Hulled hemp hearts contain approximately 36 percent protein and 47 percent fat, while whole hemp seed contains approximately 24 percent protein and 30 percent fat (House, Neufeld and Leson, 2010). Whole seeds retain the fibrous hull and carry substantially more dietary fibre.

This distinction matters because a great deal of published content describes the nutritional value of hemp seeds as high in fibre while showing data for the hulled version. Both statements cannot be true of the same product.

Choose hulled hearts for protein density and easier digestion, and whole seeds if fibre is the priority. Under Indian regulation the choice is largely settled at the point of sale, since FSSAI defines hemp seed as the hulled, non-viable seed.

How does the nutritional value of hemp seeds compare with chia and flax?

Compared per 100 g, hemp seeds lead on protein and magnesium, flaxseed leads on omega-3 ALA, and chia leads on fibre. Hulled hemp seeds provide 31.6 g protein and 700 mg magnesium, flaxseed provides 22.8 g ALA and 27.3 g fibre, and chia provides 34.4 g fibre and 17.8 g ALA (USDA FoodData Central).

Per 100 g

Hemp hearts (hulled)

Chia seeds

Flaxseed

Energy

553 kcal

486 kcal

534 kcal

Protein

31.6 g

16.5 g

18.3 g

Dietary fibre

4.0 g

34.4 g

27.3 g

Omega-3 (ALA)

9.3 g

17.8 g

22.8 g

Magnesium

700 mg

335 mg

392 mg

Source: USDA FoodData Central. Hemp FDC ID 170148, flaxseed FDC ID 169414.

Read that as a division of labour rather than a ranking. Hemp seeds roughly double the protein of either alternative, while flax and chia carry far more ALA and fibre.

How many hemp seeds should you eat in a day?

A typical serving of hemp seeds is 30 g, about three tablespoons, providing roughly 9.5 g of protein and 166 kcal. There is no established upper limit for hemp seeds as a food, but calorie density is high at 553 kcal per 100 g, so 20 g to 40 g a day is a sensible range for most people.

Start lower if hemp seeds are new to your diet. One tablespoon a day for a week lets you gauge digestive tolerance before scaling up.

Hemp seeds are an addition, not a replacement. Two tablespoons over curd does not substitute for dal, eggs, paneer, or fish. 

How do you add hemp seeds to an everyday Indian diet?

Hemp seeds require no cooking, grinding, or soaking, which makes them one of the simplest nutritional additions to an Indian diet. Hulled hemp seeds have a soft texture and mild nutty flavour, and can be stirred into curd, sprinkled over poha, blended into smoothies, or folded into chutney without altering the dish.

Heat is the one thing to watch. The polyunsaturated fats oxidise at high temperatures, so hemp seeds belong on top of hot food rather than in the pan.

Everyday habits that work:

  • Stir into curd or raita. Two tablespoons adds protein and a lysine-rich pairing at once.
  • Top poha, upma, or oats once the dish is off the heat.
  • Blend into smoothies or lassi. Hemp hearts blend smooth, with no grit.
  • Fold into chutney. Coconut or coriander chutney carries them well.
  • Sprinkle over salads and chaat for crunch, without dominating flavour.
  • Knead into atta. Two tablespoons per cup of flour for rotis.
  • Store cold. Refrigerate after opening, since the high polyunsaturated fat content makes hemp seeds prone to going rancid at Indian room temperatures.

Are hemp seeds legal and safe to eat in India, and who should be cautious?

Hemp seeds are legal to sell and eat as food in India. FSSAI notified standards for hemp seeds and seed products on 15 November 2021 under the Food Safety and Standards Fifth Amendment Regulations, 2021, permitting hemp seed, hemp seed oil and hemp seed flour to be sold as food or used as an ingredient.

FSSAI defines hemp seed as the hulled, non-viable seed of Cannabis sativa or other indigenous Cannabis species, with cultivation required to comply with the Narcotic Drugs and Psychotropic Substances Act, 1985. The notification also sets THC and CBD limits and labelling requirements.

Hemp seeds do not produce intoxicating effects. Cannabinoids concentrate in the flowers and leaves, not in the seed. Hampa Wellness explains the plant chemistry in its overview of how hemp works.

Talk to a doctor before adding hemp seeds regularly if you take anticoagulant or antiplatelet medication, are pregnant or breastfeeding, have digestive sensitivity to high-fat foods, or face workplace or competitive drug testing.

See a doctor rather than adjusting diet alone if you have persistent fatigue, unexplained weight change, or muscle weakness, since those need testing rather than a new food. Hemp seeds sold as food are also a different category from topical Ayurvedic hemp preparations, and neither is a treatment for any disease.

Where Hampa Wellness hemp seeds fit

Hampa Wellness Hemp Hearts are hulled hemp seeds sold as a food under FSSAI standards, intended as a daily addition rather than a supplement or remedy. The nutritional value of hemp seeds in this form comes from protein, fatty acids and magnesium added to meals you already eat.

Pack sizes sit in the Hampa Wellness nutrition collection, and hemp seeds and PCOS are covered in a separate article on hemp seeds and PCOS symptoms

Frequently asked questions (FAQ):

Are hemp seeds a complete protein?

Yes. Hulled hemp seeds contain all nine essential amino acids, which meets the definition of a complete protein, and provide 31.6 g of protein per 100 g according to USDA FoodData Central. Lysine is the limiting amino acid at a score of 0.62, so pairing hemp seeds with pulses improves the overall amino acid profile.

How much protein is in one tablespoon of hemp seeds?

One tablespoon of hulled hemp seeds is roughly 10 g and provides about 3.2 g of protein, based on USDA FoodData Central figures of 31.6 g per 100 g. Three tablespoons, a standard 30 g serving, provide approximately 9.5 g of protein and 166 kcal.

Is hemp protein better than whey or soy protein?

No, not on protein quality alone. Hemp seed protein has a lower PDCAAS than whey, soy, or dairy protein because lysine is limiting, with an amino acid score of 0.62 (House, Neufeld and Leson, 2010). Hemp seeds compete on whole-food nutrition, minerals and fatty acids, not on isolated protein quality.

Does roasting change the nutritional value of hemp seeds?

Roasting reduces the quality of the fat rather than the protein. The polyunsaturated fatty acids that make up over 80 percent of hemp seed oil are heat-sensitive and oxidise at high temperatures, so hemp seeds are best added to food after cooking rather than fried or roasted at high heat.

Are hemp seeds high in fibre?

Not in the hulled form usually sold. Hulled hemp seeds contain only 4.0 g of fibre per 100 g according to USDA FoodData Central, because the fibrous hull has been removed. Whole hemp seeds carry considerably more, but chia and flax remain far better fibre sources at 34.4 g and 27.3 g per 100 g.

Can eating hemp seeds cause a positive drug test?

Possibly, though a confirmed positive is unlikely. A 1997 study in the Journal of Analytical Toxicology found that eating hemp seed foods produced urine specimens that screened positive for cannabis, although no specimen exceeded the confirmatory reporting threshold. Anyone facing workplace or competitive testing should treat this as a real, if small, risk.

Do hemp seeds contain CBD or THC?

Hemp seeds contain no meaningful cannabinoids. Cannabinoids concentrate in the flowers and leaves of the plant, and any trace THC or CBD found in hemp seed products comes from surface contact during harvest and processing. FSSAI sets limits on THC and CBD content for hemp seed products sold as food in India.

Who should avoid hemp seeds?

Hemp seeds suit most people, but caution is warranted for anyone taking anticoagulant or antiplatelet medication, anyone with a diagnosed digestive condition affected by high-fat foods, and anyone subject to drug testing. Pregnant and breastfeeding women should ask their doctor before adding hemp seeds regularly.

The bottom line

Hemp seeds are not magic, and the honest case is more interesting than the marketing one. The nutritional value of hemp seeds rests on an unusual combination: complete plant protein at 31.6 g per 100 g, both essential fatty acids in a favourable ratio, and one of the densest magnesium contributions available from a whole food.

They will not fix a diet on their own, and they are the wrong choice if fibre is what you are after. Used as three tablespoons stirred into food you already eat, they close real gaps with almost no effort.

Sources :

  1. USDA FoodData Central. Seeds, hemp seed, hulled, FDC ID 170148. https://fdc.nal.usda.gov/food-details/170148/nutrients
  2. Callaway, J.C. (2004). Hempseed as a nutritional resource: An overview. Euphytica, 140(1–2), 65–72. https://link.springer.com/article/10.1007/s10681-004-4811-6
  3. House, J.D., Neufeld, J., and Leson, G. (2010). Evaluating the quality of protein from hemp seed (Cannabis sativa L.) products through the use of the protein digestibility-corrected amino acid score method. Journal of Agricultural and Food Chemistry, 58(22), 11801–11807. https://pubs.acs.org/doi/abs/10.1021/jf102636b
  4. ICMR-NIN (2020). Nutrient Requirements for Indians: Recommended Dietary Allowances and Estimated Average Requirements. National Institute of Nutrition, Hyderabad. https://www.nin.res.in/rdabook/brief_note.pdf
  5. USDA FoodData Central. Seeds, flaxseed, FDC ID 169414. https://fdc.nal.usda.gov/food-details/169414/nutrients
  6. FSSAI (2021). Food Safety and Standards (Food Products Standards and Food Additives) Fifth Amendment Regulations, 2021, sub-regulation 2.16, Hemp Seeds and Seed Products. Notified 15 November 2021. {INSERT DIRECT GAZETTE PDF LINK FROM fssai.gov.in}
  7. Struempler, R.E., Nelson, G., and Urry, F.M. (1997). A positive cannabinoids workplace drug test following the ingestion of commercially available hemp seed oil / hemp seed food products. Journal of Analytical Toxicology, 21(6), 476–479. https://academic.oup.com/jat/article-pdf/21/6/476/2193080/21-6-476.pdf {VERIFY AUTHOR LINE BEFORE PUBLISHING}

 

 

 


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