Calories in 1/2 Cup of Flax Seeds
1/2 cup of flax seeds (84 g) has 458 calories. That is 23% of a 2,000 calorie diet.
The calories come from 15 g of protein, 31 g of fat and 29 g of carbohydrates, a split of 13% protein, 62% fat and 25% carbs. For comparison, 1/4 cup of flax seeds has 229 and 3/4 cup of flax seeds has 687 calories. Burning 458 calories takes about 82 minutes of brisk walking or 37 minutes of running for a 155 lb adult, based on Harvard Health Publishing activity estimates.
Flax Seeds Calorie Calculator
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Flax Seeds calories by serving size
Common amounts of flax seeds with calories and macros. Tap a row for its full nutrition page.
Flax Seeds vs similar foods
Calories per 100 g compared with other nuts and seeds.
Flax Seeds: common questions
How many calories are in 1/2 cup of flax seeds?
1/2 cup of flax seeds weighs about 84 g and has 458 calories.
How much protein is in 1/2 cup of flax seeds?
1/2 cup of flax seeds has 15 g of protein, which is 30% of the 50 g Daily Value.
How many carbs are in 1/2 cup of flax seeds?
1/2 cup of flax seeds has 29 g of carbohydrates, including 19 g of fiber and 1.3 g of sugars.
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Source: USDA FoodData Central, FNDDS 2021-2023. FDC ID 2707588. Original description: Flax seeds. Portion weights are USDA household measures.