Carbs in Ahi Tuna
Keto-friendlyHow many carbs are in ahi tuna?
Ahi Tuna has 0g net carbs per 100g — 0g total carbs minus 0g fiber — plus 23.5g protein, 1.1g fat, and 109 calories. 3 oz raw (85g) works out to about 0g net carbs and 93 calories. That makes ahi tuna very low in net carbs and lower than the typical protein food, which averages about 10.0g net carbs per 100g. With this carb count, ahi tuna 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 Manufacturer-reported values; 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 ahi tuna keto-friendly?
Yes — ahi tuna is keto-friendly. It has 0g net carbs per 100g (0g total carbs − 0g fiber). A typical serving — 3 oz raw (85g) — is about 0g net carbs. On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other protein foods and meals.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 3 oz raw | 0g | 0g | 20g | 93 |
| 100 g (3.5 oz) | 0g | 0g | 23.5g | 109 |
| 1 oz (28 g) | 0g | 0g | 6.6g | 31 |
How many calories are in ahi tuna?
Ahi Tuna has 109 calories per 100g. 3 oz raw (85g) has about 93 calories. That's alongside 23.5g protein, 1.1g fat, and 0g net carbs per 100g.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 109 |
| Total carbs | 0g |
| Net carbs | 0g |
| Fiber | 0g |
| Sugar | 0g |
| Sugar alcohols | 0g |
| Protein | 23.5g |
| Fat | 1.1g |
| Sodium | 47mg |
| Potassium | 527mg |
Source: Manufacturer-reported values (protein). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in ahi tuna?
- Ahi Tuna has 0g of total carbs and 0g of net carbs per 100 grams.
- How many net carbs are in ahi tuna?
- Ahi Tuna has 0g of net carbs per 100 grams (total carbs 0g minus 0g fiber).
- Is ahi tuna keto-friendly?
- Yes — ahi tuna is keto-friendly. It has 0g net carbs per 100g (0g total carbs − 0g fiber). A typical serving — 3 oz raw (85g) — is about 0g net carbs. On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other protein foods and meals.
- How many calories are in ahi tuna?
- Ahi Tuna has 109 calories per 100 grams.
- How many carbs are in 3 oz raw of ahi tuna?
- 3 oz raw of ahi tuna (85g) has about 0g net carbs, 0g total carbs, and 93 calories.
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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.