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Hemp is a plant grown in the northern hemisphere that takes about 3-4 months to mature. Hemp seeds can be consumed or used to produce a variety of food products including hemp milk, hemp oil, hemp cheese substitutes and hemp-based protein powder.
Hemp seeds have a mild, nutty flavor. Hemp milk is made from hulled hemp seeds, water, and sweetener. Hemp oil has a strong “grassy” flavor.
Hemp is commonly confused with marijuana. It belongs to the same family, but the two plants are very different. Marijuana is grown to contain high amounts of tetrahydrocannabinol (THC), the chemical that is responsible for its psychoactive properties. Hemp describes the edible plant seeds and only contains a trace amount of THC.
This feature is part of a collection of articles on the health benefits of popular foods. It provides a nutritional breakdown of hemp and an in-depth look at its possible health benefits, how to incorporate more hemp into your diet and any potential health risks of consuming hemp.
According to the USDA National Nutrient Database, a 2 tablespoon serving of hemp seeds weighing 20 grams (g) contains:
- 111 calories
- 6.31 g of protein
- 9.75 g of fat
- 1.73 g of carbohydrates (including 0.8 g of fiber and 0.3 g of sugar)
- 14 milligrams (mg) of calcium
- 1.59 mg of iron
- 140 mg of magnesium
- 330 mg of phosphorus
- 240 mg of potassium
- 1.98 mg of zinc
- 22 micrograms (mcg) of folate
Hemp seeds also provide vitamin C, some B vitamins, and vitamins A and E.
The nutritional content of hemp is linked to a number of potential health benefits.
The American Heart Association recommends consuming two 3.5-ounce servings of fish, especially oily fish, each week. This is because fish is a major source of omega-3 fatty acids. If a person does not regularly consume fish, they may not be getting enough DHA or EPA.
Hemp is a plant-based source of concentrated omega-3 fatty acids. However, the fatty acids that hemp contains are alpha-linolenic acids (ALA), which are poorly converted to DHA and EPA in the body at a rate of only about 2 to 10 percent.
Despite this inefficient conversion rate, hemp is one of the richest sources of ALA, and so still represents a very good source of healthy fat, particularly for those who do not consume fish or eggs.
Hemp contains a specific omega-6 fatty acid called GLA and hemp oil contains an even higher percentage of GLA.
Hemp seeds also contain phytosterols, which help in reducing the amount of cholesterol in the body by removing fat build-up in the arteries.
Hemp contains all 10 essential amino acids, making it a good plant-based protein source. Hemp does not contain phytates, which are found in many vegetarian protein sources and can interfere with the absorption of essential minerals.
Magnesium plays an important role in over 300 enzymatic reactions within the body, including the metabolism of food and synthesis of fatty acids and proteins. Magnesium is involved in neuromuscular transmission and activity and muscle relaxation.
Magnesium deficiency — which is especially prevalent in older populations — is linked to insulin resistance, metabolic syndrome, coronary heart disease, and osteoporosis. Nuts and seeds like hemp are some of the best sources of magnesium.
Research suggests that people experiencing premenstrual syndrome (PMS) may be able to alleviate symptoms such as bloating, insomnia, leg swelling, weight gain and breast tenderness by ensuring an adequate intake of magnesium. Magnesium combined with vitamin B6 appears to be most efficacious in these instances.
Hemp seeds should be kept in an airtight container in a cool, dry place. Most hemp products need to be refrigerated after being opened.
To avoid damaging the fatty acids, shelled hemp seeds should not be heated above 350 °Fahrenheit.
Quick tips for using hemp:
- Purchase meal bars or granola bars made with hemp seeds for a quick snack
- Use hemp seed oil to make a salad dressing
- Sprinkle some hemp seeds on salads, rice pilafs, oatmeal, or yogurt
- Add hemp seeds to baked goods such as whole wheat muffins.
Try some of these healthy and delicious recipes using hemp, all developed by registered dietitians:
Hemp seeds are safe when consumed in moderation. Because hemp seeds are high in fat, the sudden increase in fat caused by eating large amounts of hemp may cause mild diarrhea. People with a sensitive digestive system are advised to start by eating a small amount, such as 1 teaspoon, and slowly work up to the serving size of 2 tablespoons.
Hemp seeds inhibit platelet formation and interact with anticoagulant medications, causing a higher risk of bleeding. If you have been prescribed an anticoagulant, talk to your doctor before consuming a large amount of hemp.