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Bell Peppers

Bell Peppers

Overview

Bell peppers provide vitamin C, carotenoids (including capsanthin and related pigments), and low energy density [1]. Co-consuming vegetables with a small amount of dietary fat improves carotenoid absorption via chylomicron packaging [2].

Within the BRAIN Diet framework, peppers are a vitamin C–rich vegetable supporting non-heme iron absorption in mixed meals and contributing carotenoid diversity [1,2].

Key Nutritional Highlights

  • Very high vitamin C per 100 g among common vegetables; supports non-heme iron absorption in mixed meals [1].
  • Carotenoid pigments with improved bioavailability when paired with dietary fat [2].
  • Low energy density; colour (red/yellow/orange) tracks carotenoid profile.
  • Useful culinary pairing with legumes, grains, and iron-containing plant foods [1].

Food Context

Synergies

  • Pair with iron-rich plant meals to enhance absorption
  • Part of food synergy strategy

Preparation

  • Can be consumed raw or cooked
  • Supports iron sufficiency

Recipes

1 recipe containing this food

Nutrient Tables (per 100 g)

Core nutrients

NutrientAmount per 100 g% RDA per 100 g
Energy26 kcal
Protein1 g
Total fat0.3 g
Saturated fat0.1 g
Carbohydrates6 g
Sugars4.2 g
Fibre2.1 g

Key vitamins and minerals

NutrientAmount per 100 g% RDA per 100 g
Vitamin C127.7 mg141.9%

Bioactive compounds

Explicitly identified compounds, including individual fatty acids, with a defensible quantity or an explicit qualitative status. Asterisks (*) identify supplementary sources below. Unquantified or trace constituents are not automatically admitted to the Substances list.

Compound / classAmount per 100 gNotes
Beta-Carotene1624 µg
Lutein + zeaxanthin51 µg
Reference intakes: US Dietary Reference Intakes for adults (19–50 years; using the higher of male/female values where they differ).
Data provenance (core / micronutrient panel): USDA FoodData Central, Peppers, sweet, red, raw, FDC ID 170108, SR Legacy bulk (April 2018), per 100 g edible portion, last checked 2026-08-15

Substances

Substances admitted through a supported nutrition-table row. Not every table row appears here. Cards are not BRS mappings.

2 substances in this food
Chemical structure

Lutein

Neuroprotective carotenoid; accumulates in neural tissues and retina; supports cognitive performance

References

[1] Useful culinary pairing with legumes, grains, and iron-containing plant foods. Johnson et al. 2014. Role of lutein and zeaxanthin in visual and cognitive function throughout the lifespan

[2] Carotenoid pigments with improved bioavailability when paired with dietary fat. Brown & Ferruzzi 2004. Carotenoid bioavailability is higher from salads ingested with full-fat than with fat-reduced salad dressings as measured with electrochemical detection