Vitamin E (Tocopherol)
Vitamin E protects cell membranes from oxidative damage and acts as an anti-inflammatory, blocking the activity of an enzyme that provokes inflammation. It also inhibits mast cell degranulation, the biochemical process that releases histamine and other inflammatory chemicals during an allergic response. It helps maintain the elastic quality in cells, which, in turn, increases elasticity in muscles, important for allergy-induced arthritis.
As with vitamin C, levels of vitamin E are typically low in asthma patients. Studies have shown that supplementation of vitamin E enhances the function of T lymphocytes and elevates amounts of B cells in asthma patients. These effects appear to stabilize the hyperactive immune system and prevent asthma attacks. In addition, high doses of vitamin C supplements have been shown to inhibit allergic rhinitis nasal symptoms.
Food sources: cold-pressed oils such as sunflower and safflower, almonds, hazelnuts, and wheat germ. Supplements: vitamin E is actually a group of compounds called tocopherols. When purchasing supplements of vitamin E, avoid products that contain vitamin E in the DL-alpha tocopherol acetate form - this means that it is a petroleum-based synthetic form of the vitamin. The natural form of vitamin E will be designated with the letter "D". Research has shown that the natural form of vitamin E has better antioxidant protective properties and recent research indicates that mixed tocopherols may, in fact, be the best. Avoid taking iron supplements at the same time of the day as vitamin E supplements as they mutually prevent absorption. Drink filtered water (no chlorinated water) and avoid polyunsaturated fats, since these may destroy vitamin E. RDA: 30 IU; therapeutic does: 200-800 IU; up to 3,000 IU per day has shown no negative effects, although prolonged ingestion of high doses may produce adverse skin reactions and upset stomach.
Vitamin B5 (Pantothenic Acid)
Vitamin B5 is involved in the production of adrenal hormones, such as cortisol, and also helps metabolize fat and carbohydrates. In large doses (up to 1,500 mg per day), vitamin B5 has an antihistamine effect as it promotes cortisol release, thus reducing the symptoms of allergic reactions. Vitamin B5 is also an excellent aid in reducing the effects of stress on the body.
Food sources: liver, meat, chicken, whole grains, and legumes; eating a variety of foods can ensure adequate levels of vitamin B5. RDA: none; therapeutic dose: 10 mg to 2,000 mg. Extremely high doses (10,000 mg+) will produce diarrhea.
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