Vegetable · Nightshade

Bell Peppers

Health
ScoreA+

Bell peppers are low-calorie, nutrient-dense vegetables exceptionally rich in vitamin C and carotenoids, supporting immune function and cellular antioxidant defenses.

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Why Bell Peppers scores 94

Nutrient density33

Protein quality8

Fiber content10

Healthy fats5

Bioactive compounds13

Glycemic impact10

Top nutrients

% Daily Value per ½ cup (85 g)

Vitamin C 121%Vitamin B6 15%Folate 9.8%Potassium 3.8%

Nutrition

per_100g

Calories

Protein

Carbs

0.3g

Fat

2.1g

Fiber

Health benefits

Enhanced immune function and collagen synthesis

strong evidence

Vitamin C (128 mg/100g) serves as a cofactor for immune cell function and collagen cross-linking, essential for skin elasticity and tissue integrity during aging

Reduced oxidative stress and inflammation

strong evidence

Carotenoids (especially beta-carotene and lycopene in red peppers) and quercetin directly scavenge free radicals and inhibit pro-inflammatory signaling pathways

Cardiovascular protection and blood pressure regulation

moderate evidence

Potassium promotes vasodilation and sodium-potassium balance; polyphenols improve endothelial function and reduce arterial stiffness

Eye health and macular degeneration prevention

moderate evidence

Lutein and zeaxanthin accumulate in retinal tissue and filter harmful blue light while reducing oxidative damage to photoreceptors

Blood glucose stability and metabolic health

moderate evidence

Low glycemic index, high fiber content (2.1g/100g), and polyphenols slow glucose absorption and improve insulin sensitivity

Pairs well with

·Pair with olive oil because fat-soluble carotenoids (beta-carotene, lycopene) require dietary lipids for optimal absorption and bioavailability
·Combine with garlic and onions because allicin compounds synergize with bell pepper polyphenols to enhance anti-inflammatory and antimicrobial effects
·Eat with legumes (beans, lentils) because vitamin C significantly increases non-heme iron bioavailability from plant-based protein sources
·Mix with avocado because healthy fats enhance carotenoid absorption while monounsaturated fats support cardiovascular benefits

Practical tips

·Best timing: Bell peppers contain no compounds requiring specific circadian timing; consistent daily consumption optimizes cumulative antioxidant benefits. Consume with meals containing fat for enhanced carotenoid absorption.
·Select peppers with firm, glossy skin and no soft spots; store in refrigerator crisper drawer for up to 2 weeks to preserve vitamin C content
·Prefer red, orange, or yellow varieties over green for higher carotenoid and antioxidant concentrations due to extended ripening duration
·Consume raw or lightly cooked (roasted <5 minutes) to maximize heat-sensitive vitamin C; prolonged boiling reduces C content by 50%+
·Include bell pepper skin in prepared dishes whenever possible, as polyphenols concentrate in the outer layers near the skin
·Aim for ½–1 cup (75–150g) daily to obtain meaningful micronutrient benefits without excessive volume