Beta-carotene

Definition

Beta-carotene is a red-orange pigment found in plants and fruits, especially carrots and colorful vegetables. It is a precursor to vitamin A, which is important for vision, skin health, and immunity.

Scientific / Technical Definition

Beta-carotene is an organic, strongly colored red-orange pigment abundant in plants and fruits. It belongs to a group of compounds called carotenoids, which are extensively studied for their antioxidant properties. Beta-carotene is a provitamin A, meaning it converts to vitamin A (retinol) in the body, which is essential for various biological functions including maintaining skin and mucous membrane integrity, supporting immune functions, and embryonic development.

Benefits

• Supports eye health and vision
• Promotes skin health and may help protect against sun damage
• Acts as an antioxidant, helping to neutralize free radicals in the body
• Boosts the immune system
• May reduce the risk of certain chronic diseases

Examples

• Carrots
• Sweet potatoes
• Spinach
• Kale
• Pumpkin

Additional Information

• Known issues: Consuming large amounts of beta-carotene supplements may lead to carotenemia, a harmless condition where the skin turns yellow-orange. However, excessive supplementation, especially in smokers, has been linked to an increased risk of lung cancer.

Related Terms

• Carotenoids
• Antioxidants
• Vitamin A
• Lutein
• Lycopene

References

• Carotenoids and retinoids: Molecular aspects and health issues
• Beta-carotene: Uses, side effects, interactions, dosage, and warning
• The role of carotenoids in human health: A review of nutritional and physiological impacts