Tomato vs Bell Pepper: which is healthier?

Per 100g, Tomato has 18 calories, 0.9g protein, 1.2g fiber, and 0.2g fat, while Bell Pepper has 23 calories, 0.7g protein, 0.9g fiber, and 0.1g fat. Tomato is the lower-calorie pick, and their protein content is close enough that it rarely tips the decision.

Which has more calories, Tomato or Bell Pepper?

Per 100g, Tomato has 18 calories and Bell Pepper has 23 calories, a difference of 5 calories. In practical terms, 1 medium tomato (22 calories) of tomato compares with 1 medium bell pepper (34 calories) of bell pepper.

Which has more protein, Tomato or Bell Pepper?

Tomato leads on protein with 0.9g per 100g; the gap is 0.2g per 100g (Tomato 0.9g vs Bell Pepper 0.7g). If you are tracking protein targets, that difference compounds quickly across a full day of meals.

Which is better for a low-carb diet, Tomato or Bell Pepper?

Tomato has 3.9g of carbs per 100g compared to 4.8g in Bell Pepper, making Tomato the easier fit for low-carb or keto plans. Fiber is 1.2g vs 0.9g per 100g, which also affects net carbs.

Can I substitute Tomato for Bell Pepper?

Often, yes. Swapping bell pepper for tomato shifts your meal by about 5 calories and 0.2g of protein per 100g, so adjust portions if you are logging macros. Texture and cooking behavior differ more than nutrition in many recipes, so test the swap in small batches first.