Carbs in Guiness
Keto-friendlyHow many carbs are in guiness?
Guiness has 3.2g net carbs per 100g — 3.2g total carbs minus 0g fiber — plus 0.3g protein, 0g fat, and 14 calories. With this carb count, guiness 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 Open Food Facts; 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 guiness keto-friendly?
Yes, guiness can fit a keto diet in moderate portions. It has 3.2g net carbs per 100g (3.2g total carbs − 0g 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) | 3.2g | 3.2g | 0.3g | 14 |
| 1 oz (28 g) | 0.9g | 0.9g | 0.1g | 4 |
How many calories are in guiness?
Guiness has 14 calories per 100g. That's alongside 0.3g protein, 0g fat, and 3.2g net carbs per 100g.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 14 |
| Total carbs | 3.2g |
| Net carbs | 3.2g |
| Fiber | 0g |
| Sugar | 0g |
| Sugar alcohols | 0g |
| Protein | 0.3g |
| Fat | 0g |
| Sodium | 0mg |
| Potassium | 0mg |
Source: Open Food Facts (Guiness). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in guiness?
- Guiness has 3.2g of total carbs and 3.2g of net carbs per 100 grams.
- How many net carbs are in guiness?
- Guiness has 3.2g of net carbs per 100 grams (total carbs 3.2g minus 0g fiber).
- Is guiness keto-friendly?
- Yes, guiness can fit a keto diet in moderate portions. It has 3.2g net carbs per 100g (3.2g total carbs − 0g 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 guiness?
- Guiness has 14 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.