Chia seeds vs Flaxseed

Per 100 g, chia seeds has 517 kcal, 17 g protein, 38 g carbohydrate and 33 g fat; flaxseed has 534 kcal, 18 g protein, 29 g carbohydrate and 42 g fat. Chia seeds and flaxseed have about the same calories per 100 g (517 vs 534 kcal).

Per 100 g, side by side

Nutrient	Chia seeds	Flaxseed	Difference
Calories	517 kcal	534 kcal	−17 kcal
Protein	17 g	18 g	−1.3 g
Carbohydrate	38 g	29 g	+9.4 g
Fat	33 g	42 g	−9.3 g
Sodium	0 mg	30 mg	−30 mg

Difference is Chia seeds minus Flaxseed. Full names: Chia seeds, dry, raw · Seeds, flaxseed.

Per serving

Food · serving	kcal	Protein	Carbs	Fat
Chia seeds · 100 g	517	17 g	38 g	33 g
Flaxseed · 1 tbsp, whole, 10 g	55	1.9 g	3 g	4.3 g

Where the calories come from

Chia seeds · 13% protein · 30% carbohydrate · 57% fat

Flaxseed · 13% protein · 20% carbohydrate · 67% fat

The differences, in numbers

Chia seeds and flaxseed have about the same calories per 100 g (517 vs 534 kcal).
Flaxseed has 8% more protein per 100 g than chia seeds (18 g vs 17 g). Per calorie, chia seeds gives 3.3 g of protein per 100 kcal and flaxseed gives 3.4 g.
Chia seeds has 33% more carbohydrate per 100 g than flaxseed (38 g vs 29 g).
Flaxseed has 28% more fat per 100 g than chia seeds (42 g vs 33 g).

One serving of each on the day view

Calories 517 of 2,000 kcal

Macro loadout

Pro 11%

17 / 150g

Carb 19%

38 / 200g

Fat 55%

33 / 60g

100 g of chia seeds, dry, raw on a 2,000 kcal reference day (150 g protein · 200 g carbs · 60 g fat). A scale for reading the numbers, not a target.

Calories 55 of 2,000 kcal

Macro loadout

Pro 1%

1.9 / 150g

Carb 1%

3 / 200g

Fat 7%

4.3 / 60g

1 tbsp, whole of seeds, flaxseed on a 2,000 kcal reference day (150 g protein · 200 g carbs · 60 g fat). A scale for reading the numbers, not a target.

The reference day is a scale, not a target; the macro calculator estimates your own.

Frequently asked questions

Which has more calories, chia seeds or flaxseed?

Chia seeds and flaxseed have about the same calories per 100 g (517 vs 534 kcal).

Which has more protein, chia seeds or flaxseed?

Flaxseed has 8% more protein per 100 g than chia seeds (18 g vs 17 g). Per calorie, chia seeds gives 3.3 g of protein per 100 kcal and flaxseed gives 3.4 g.

What are the macros of chia seeds vs flaxseed?

Chia seeds: 13% protein, 30% carbohydrate, 57% fat by energy. Flaxseed: 13% protein, 20% carbohydrate, 67% fat.

Source: USDA FoodData Central, FDC IDs 2710819 (Grains & bread) and 169414 (Nuts & seeds), as indexed by Kaunto. Per-serving figures are scaled from the 100 g values and rounded. More on how food databases work.