Calorie data · Nuts & Seeds← All foods

How many calories in
flax seeds?

Flax seeds are 534 calories per 100g. Ground flax (also called flaxmeal) is what you usually want — whole flax passes through mostly undigested. A tablespoon of ground flax is 37 calories with 2g of fiber and a meaningful amount of plant-based omega-3.

534
kcal · 100g
18g
Protein
29g
Carbs
42g
Fat
Servings

Common serving sizes.

Calories scale with portion. Here's how a typical flax seeds serving translates in your tracker:

Serving
Calories
Protein
1 tbsp, ground (7g)
37 kcal
1.2g
1 oz (28g)
150 kcal
5.1g
1/4 cup, ground (30g)
160 kcal
5.4g
Track this food

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FAQ

Quick answers.

How many calories in flax seeds?

Flax Seeds has approximately 534 calories per 100g. A typical serving — 1 tbsp, ground (7g) — comes in at 37 calories.

How much protein is in flax seeds?

18g of protein per 100g. That puts flax seeds at roughly 3.4g of protein per 100 calories — a useful lens when comparing to other nuts & seeds sources.

How do I log flax seeds accurately?

The simplest method: weigh it on a kitchen scale, then enter grams in your tracker. With SpotWell, you can skip the scale — point the camera at the plate and the AI estimates the portion in under a second. Adjust the value if it looks off.

Is flax seeds good for weight loss?

It depends on your overall calorie target. Flax Seeds is calorie-dense at 534 kcal per 100g, so portion control matters more than with low-cal foods.