Vitamin A (Retinol) and Carotenoids (beta-carotene, precursor of Vitamin A) are used in condition of Acne, eczema, psoriasis, cancer prevention (especially of prostrate), enchaining immunity, gastrointestinal ulcers, cardiovascular disease (prevents LDL oxidation), vision (decreased risk of cataracts and age-related degeneration of macula) and respiratory problems (allergies, asthma, bronchitis, emphysema, sinusitis).
Best form to take this supplement: Natural, full spectrum carotenoids with vitamin A. The carotenoids should contain beta-carotene, lycopene, lutein, alpha-carotene and zeaxanthin. Also Vitamin A palmitate is best for people who have problems absorbing fats.
Fish liver oil from cod, halibut, salmon, and shark. Its is also found in beef and chicken liver, and in eggs and dairy products. Beta-carotene, the vitamin A precursor, is found only in green and yellow-orange fruits and vegetables, such as carrots, kale, kohlrabi, parsley, spinach, turnip greens, dandelion greens, apricots, and cantaloupe. Tomato paste is the best food source of lycopene.
When relying on food sources, be aware that vitamin A and carotenoids can be destroyed by heat; by alkalis such as baking soda; by light and air (oxidation).
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