Carbs in Tums
How many carbs are in tums?
Tums has 50g net carbs per 100g — 50g total carbs minus 0g fiber — plus 0g protein, 50g fat, and 500 calories. At this carb count, tums is best limited to small portions on keto (usually 20–50g net carbs per day). Values are per per 100 g, sourced from Open Food Facts; net carbs are computed by CarbMeNot.
Keeping an eye on carbs in tums?
Tums runs higher in carbs, so portions matter. CarbMeNot tracks every gram from a photo, so you stay under your daily limit without the math.
Last updated June 10, 2026 · Reviewed by Jordan Lee, Nutrition Editor
Values per 100 g.
Is tums keto-friendly?
Tums is generally not keto-friendly. It has 50g net carbs per 100g (50g total carbs − 0g fiber). On a standard keto diet (20–50g net carbs per day), even one serving uses a large share of your daily carbs, so keep portions small or save it for a higher-carb day.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 100 g (3.5 oz) | 50g | 50g | 0g | 500 |
| 1 oz (28 g) | 14g | 14g | 0g | 140 |
How many calories are in tums?
Tums has 500 calories per 100g. That's alongside 0g protein, 50g fat, and 50g net carbs per 100g.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 500 |
| Total carbs | 50g |
| Net carbs | 50g |
| Fiber | 0g |
| Sugar | 50g |
| Sugar alcohols | 0g |
| Protein | 0g |
| Fat | 50g |
| Sodium | 0mg |
| Potassium | 0mg |
Source: Open Food Facts (Generic). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in tums?
- Tums has 50g of total carbs and 50g of net carbs per 100 grams.
- How many net carbs are in tums?
- Tums has 50g of net carbs per 100 grams (total carbs 50g minus 0g fiber).
- Is tums keto-friendly?
- Tums is generally not keto-friendly. It has 50g net carbs per 100g (50g total carbs − 0g fiber). On a standard keto diet (20–50g net carbs per day), even one serving uses a large share of your daily carbs, so keep portions small or save it for a higher-carb day.
- How many calories are in tums?
- Tums has 500 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.