Evidence-based nutrition, in plain English — every entry sourced from clinical research.

Red bell pepper and tomato are both salad-drawer regulars and both technically fruits – closer in nutrition than most people expect.

Red bell pepper and tomato side by side, photographed for nutritional comparison
Red Bell Pepper vs Tomato — nutrition per 100 g
NutrientRed Bell PepperTomato
Calories31.3 kcal18 kcal
Protein0.9 g ✓0.88 g
Total Carbohydrate6.65 g3.89 g
Dietary Fiber1.16 g1.2 g ✓
Total Sugars4.2 g2.63 g ✓
Total Fat0.13 g0.2 g
Saturated Fat0.059 g0.03 g ✓
Sodium0 mg ✓5 mg

Notable compounds in each

When to choose each

These two are close enough that the differences barely register – red bell pepper has a slight edge on protein and sodium, while tomato is marginally ahead on fibre and saturated fat and clearly lower in sugar. Red bell pepper is the standout for vitamin C among raw vegetables generally; tomato brings its own well-known lycopene content, particularly concentrated when cooked. Both are low-calorie, everyday staples worth eating liberally.

Common questions

Which has more vitamin C, red bell pepper or tomato? Red bell pepper, by a wide margin – it’s one of the richest raw vegetable sources of vitamin C available, well ahead of tomato and even citrus fruit gram for gram.

Does cooking tomatoes destroy their nutrients? Not entirely – cooking does reduce vitamin C content, but it actually increases the bioavailability of lycopene, tomato’s signature antioxidant, which is why tomato sauce and paste are often considered just as valuable nutritionally as fresh tomato.