The questions Canadian consumers most often ask about hemp hearts, from whether they need refrigerating to THC and kids, with concise current answers.
Do hemp hearts need to be refrigerated?
After opening, yes: sealed airtight in the fridge, hemp hearts stay fresh for about 3 to 6 months, against about 4 to 6 weeks in a cool cupboard, because cold slows the oxidation that turns their oils rancid. Unopened hemp hearts can be stored in a cool, dark pantry until the best-before date.
How long are hemp hearts good for after opening?
About 3 to 6 months in the fridge, about a year in the freezer, and about 4 to 6 weeks at room temperature. The clearest sign they have gone off is a sharp, bitter or paint-like smell or taste. Full shelf-life figures, freezing tips and what to do with a large bag are in our guide to storing hemp seeds and hearts.
Are hemp hearts and hemp seeds the same?
Hemp hearts are hulled hemp seeds (shell removed). Whole hemp seed includes the shell. The terms hemp hearts, hulled hemp seed, and shelled hemp seed all refer to the same product.
Do I need to cook hemp hearts?
No. Hemp hearts are typically eaten raw. Cooking is not necessary for safety or digestibility and actually degrades the polyunsaturated fats. Stir them into hot oatmeal or yogurt without further cooking.
How many hemp hearts should I eat per day?
Three tablespoons (30 grams) is the standard serving size on most brand packaging. This provides 10 grams of protein and 50 percent of daily magnesium for 166 calories.
Are hemp hearts gluten-free?
Naturally yes. Hemp contains no gluten. For consumers with celiac disease, choose hemp hearts processed in dedicated gluten-free facilities; cross-contamination from shared equipment is possible.
Do hemp hearts contain THC?
Trace amounts only. The kernel contains far less THC than the flowering parts of the plant, and dehulling removes residual shell-bound cannabinoids. Routine consumption produces no detectable effect and almost never triggers standard drug tests.
Are hemp hearts keto-friendly?
Yes. A 30 gram serving contains about 1.4 grams of net carbohydrate (2.6 grams of carbohydrate, 1.2 grams of it fibre), according to USDA FoodData Central. Hemp hearts are among the most keto-compatible plant foods.
Can babies and toddlers eat hemp hearts?
Yes, once a child is eating other solid foods, but for children under 4, grind hemp hearts and mix them into soft foods such as infant cereal, yogurt or purées rather than offering them whole or by the handful, because Health Canada lists seeds among the foods that are not safe for that age. Hemp is not on Canada's priority allergen list. Start with small amounts (1 teaspoon) and increase gradually. For children with known seed allergies, talk to a doctor or allergist first. Our practical guide to hemp hearts for kids covers ages, texture and amounts in more detail.
Are hemp hearts anti-inflammatory?
The fat profile (balanced omega ratio, GLA content) is consistent with anti-inflammatory dietary patterns, but direct clinical evidence of hemp hearts reducing inflammation markers in humans is limited. They are part of an anti-inflammatory diet rather than a specific anti-inflammatory food.
Will hemp hearts make me gain weight?
Hemp hearts are calorie-dense (5.5 calories per gram). Three tablespoons add 166 calories to a meal. As an ingredient swap (replacing croutons, cheese, or higher-calorie toppings) hemp hearts can be calorie-neutral or reducing. As an addition on top of an unchanged diet, they add calories.
Can hemp hearts replace fish oil?
Not directly. Hemp hearts provide alpha-linolenic acid (ALA), the plant omega-3. Fish oil provides EPA and DHA, the longer-chain omega-3s linked to specific cardiovascular and cognitive outcomes. The body converts ALA to EPA and DHA at low efficiency (1 to 10 percent). For consumers specifically targeting EPA and DHA, fish oil or algae-based supplements remain more direct sources.