Carbs in Flaxseed
Keto-friendlyHow many carbs are in flaxseed?
Flaxseed has 1.6g net carbs per 100g — 28.9g total carbs minus 27.3g fiber — plus 18.3g protein, 42.2g fat, and 534 calories. With this carb count, flaxseed fits a keto or low-carb diet (usually 20–50g net carbs per day) in normal portions. Values are per per 100 g, sourced from USDA FoodData Central; net carbs are computed by CarbMeNot.
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Last updated June 10, 2026 · Reviewed by Jordan Lee, Nutrition Editor
Values per 100 g.
Is flaxseed keto-friendly?
Yes — flaxseed is keto-friendly. It has 1.6g net carbs per 100g (28.9g total carbs − 27.3g fiber). On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other foods and meals.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 100 g (3.5 oz) | 1.6g | 28.9g | 18.3g | 534 |
| 1 oz (28 g) | 0.4g | 8.1g | 5.1g | 150 |
How many calories are in flaxseed?
Flaxseed has 534 calories per 100g. That's alongside 18.3g protein, 42.2g fat, and 1.6g net carbs per 100g.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 534 |
| Total carbs | 28.9g |
| Net carbs | 1.6g |
| Fiber | 27.3g |
| Sugar | 1.6g |
| Sugar alcohols | 0g |
| Protein | 18.3g |
| Fat | 42.2g |
| Sodium | 30mg |
| Potassium | 813mg |
Source: USDA FoodData Central (SR Legacy). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in flaxseed?
- Flaxseed has 28.9g of total carbs and 1.6g of net carbs per 100 grams.
- How many net carbs are in flaxseed?
- Flaxseed has 1.6g of net carbs per 100 grams (total carbs 28.9g minus 27.3g fiber).
- Is flaxseed keto-friendly?
- Yes — flaxseed is keto-friendly. It has 1.6g net carbs per 100g (28.9g total carbs − 27.3g fiber). On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other foods and meals.
- How many calories are in flaxseed?
- Flaxseed has 534 calories per 100 grams.
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CarbMeNot provides general nutrition information, not medical advice. Values are estimates — verify before relying on them for any health decision. See our Medical Disclaimer.