Chia Seeds vs Flax Seeds

Per 100 g, Chia Seeds have 486 kcal and Flax Seeds have 534 kcal. A typical serving of Chia Seeds (1 tbsp, 12 g) has 58 kcal and 2 g protein, and a typical serving of Flax Seeds (1 tbsp, 10 g) has 53 kcal and 1.8 g protein.

The verdict

Better for weight loss

Chia Seeds

Calories are close (486 vs 534 kcal per 100 g), but Chia Seeds give you more fibre per calorie than Flax Seeds, which helps you stay full.

More protein per calorie

Tie

Per calorie they are close: 3.4 g vs 3.4 g protein per 100 kcal (16.5 g vs 18.3 g per 100 g). Neither is a major protein source.

More fibre per calorie

Chia Seeds

Chia Seeds give 7.1 g fibre per 100 kcal against 5.1 g for Flax Seeds (34.4 g vs 27.3 g per 100 g). Fibre slows digestion and helps fullness.

Bottom line

For weight loss, Chia Seeds are the more filling pick. Both can fit a healthy Indian diet in sensible portions. What matters most is your total daily calories and protein, not any single food.

Nutrition side by side

Per 100 gChia SeedsFlax Seeds
Calories486 kcal534 kcal
Protein16.5 g18.3 g
Carbohydrates42.1 g28.9 g
Fat30.7 g42.2 g
Fibre34.4 g27.3 g
Sugar0 g1.6 g
Sodium16 mg30 mg
Calcium631 mg255 mg
Iron7.7 mg5.7 mg
Potassium407 mg813 mg
Vitamin C1.6 mg0.6 mg

Gold marks the better value for a typical fat-loss or general-health goal. Per 100 g of the ready-to-eat form. Sources: INDB, IFCT 2017 (NIN-ICMR) and USDA FoodData Central. Values vary with recipe and portion.

Per typical serving

Chia Seeds, 1 tbsp (12 g)

58 kcal

2 g protein · 5.1 g carbs · 3.7 g fat · 4.1 g fibre

100 kcal = about 21 g

Full nutrition for Chia Seeds →

Flax Seeds, 1 tbsp (10 g)

53 kcal

1.8 g protein · 2.9 g carbs · 4.2 g fat · 2.7 g fibre

100 kcal = about 19 g

Full nutrition for Flax Seeds →

Vitamins and minerals

  • Chia Seeds have 2.5x the calcium of Flax Seeds (631 vs 255 mg per 100 g).
  • Flax Seeds have about twice the potassium of Chia Seeds (813 vs 407 mg per 100 g).

How we pick a winner

  • Weight loss: fewer calories per 100 g wins when the gap is 10% or more, unless the other food gives at least 1.5x the protein and fibre per calorie. When calories are close, more protein and fibre per calorie wins.
  • Protein: more protein per 100 kcal, which is what counts when you are on a calorie budget.
  • Fibre: more fibre per 100 kcal.

Frequently asked questions

Which has more calories, Chia Seeds or Flax Seeds?

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Flax Seeds have more: 534 kcal per 100 g against 486 kcal. A typical serving of Chia Seeds (1 tbsp, 12 g) has 58 kcal and 2 g protein, and a typical serving of Flax Seeds (1 tbsp, 10 g) has 53 kcal and 1.8 g protein.

Is Chia Seeds or Flax Seeds better for weight loss?

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Chia Seeds. Calories are close (486 vs 534 kcal per 100 g), but Chia Seeds give you more fibre per calorie than Flax Seeds, which helps you stay full. Weight loss comes from your total daily calorie deficit, so either can fit in the right portion.

Which has more protein, Chia Seeds or Flax Seeds?

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Per calorie they are close: 3.4 g vs 3.4 g protein per 100 kcal (16.5 g vs 18.3 g per 100 g). Neither is a major protein source.

How much Chia Seeds and Flax Seeds equals 100 calories?

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About 21 g of Chia Seeds or 19 g of Flax Seeds gives you 100 kcal.

Stop guessing which food is better

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