Carbs in Flaxseed
Keto-friendlyFlaxseed (per 100 g) contains 28.9g total carbs, 1.6g net carbs, 42.2g fat, 18.3g protein, and 534 calories.
Last updated June 10, 2026 · Reviewed by Jordan Lee, RD, Registered Dietitian

1.6g
Net carbs
28.9g
Total carbs
27.3g
Fiber
18.3g
Protein
42.2g
Fat
534
Calories
Values per 100 g.
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 |
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 — with 1.6g net carbs per 100g, flaxseed fits a ketogenic diet in normal portions.
- How many calories are in flaxseed?
- Flaxseed has 534 calories per 100 grams.



