Carotenes - (Carotenoids) What is it? (physiology and clinical effects) Carotenes are potent antioxidants. There are over 600 carotenoids that have been identified, 50 of which act as precursors to vitamin A. Beta carotene, alpha carotene, lycopene, lutein, and zeaxanthin are some examples of carotenoids with therapeutic benefits. Clinically relevant conditions: Strengthens immune function Photosensitivity disorders (Beta Carotenes) Prostate cancer prevention (Lycopene) Heart disease prevention Macular degeneration (Lutein / Zeaxanthin) Food Sources: Yellow, orange and green colored vegetables (carrots, pumpkins, squash, sweet potatoes, peppers, broccoli, collard greens, kale, lettuce, spinach), and fruits (apricots, watermelon, pink grapefruit, tomatoes, cherries) Risk factors and symptoms of deficiency: (who is likely deficient) Deficiency is not common. Supplementation may be recommended in individuals with low intake of fruits and vegetables or those with poor gastrointestinal absorption. Recommended dosage: (how much usually taken) No RDA has been established. Most multi-vitamin formulas provide 25,000 IU of Beta Carotene per day. Contraindications:(side effects / precautions / interactions / drug interactions) High intake may lead to carotenemia (yellowing of skin), and possibly amenorrhea. Cigarette smokers should not take beta-carotene supplements as it may increase the risk of lung cancer. Copyright © 2006 R & G Global Holding LLC All rights reserved. www.myNDonline.com The information provided on myNDonline is not intended to replace or be used in place of medical advice given by a licensed healthcare professional.