Improve Your Health With Antioxidant Rich Diet
|Antioxidants and your health||Darrell Miller||05/17/10|
May 17, 2010 10:44 AM
Author: Darrell Miller (email@example.com)
Subject: Antioxidants and your health
There is an impressive amount of scientific evidence supporting the health benefits of supplementing with a wide variety of antioxidants. Consequently, there are many health practitioners who have begun to recommend high dietary intakes of these crucial nutrients in order to prevent against oxidative stress. It was anticipated over two decades ago by leading researchers that high-dose supplementation with antioxidants is developing a significant role in the prevention and treatment of a lot of today’s common illnesses. It should be noted that antioxidants do not work in isolation. When an antioxidant neutralizes a free radical, it, itself, is oxidized and must be regenerated by another antioxidant before it can be used again. Because of this, it is crucial to supplement with a wide variety of antioxidants, in order to reflect what actually occurs in nature.
Vitamin C, an aqueous-phase antioxidant, is the main guard against oxidative attack in the extra-cellular matrix, as well as within the cytoplasm of the cell. Vitamin C happens to be a substrate for eight different enzyme systems that are involved in various cellular functions. Among these functions are collagen synthesis, ATP synthesis in the mitochondria, and hormone biosynthesis. Its main antioxidant partners are vitamin E and beta carotene, both of which help to regenerate vitamin C.
Of all the antioxidants, it seems as if vitamin E offers the greatest protection against heart disease because of its ability to protect the cardiovascular system from oxidative damage. It is lipid-soluble, making it an important component of the cell membrane, where it works to protect the cell against lipid peroxidation and control oxidation-induced inflammatory events. Recently, the gamma tocopherol form of vitamin E has shown a great deal of promise in its ability to reduce the risk of several oxidative stress related disease.
Beta-carotene is a member of a diverse group of photosynthetic pigments. It plays a huge role in human nutrition. As an antioxidant, it possesses a double-bond structure that allows it to react effectively with single oxygen radicals, absorbing and diffusing their energy. Beta-carotene also acts as a precursor for vitamin A by supplying a portion of the body’s requirement for the vitamin. This act alone plays a central role in the chemistry of vision. Beta-carotene and vitamin A both prevent the oxidation of cholesterol, reduce oxidative damage to DNA, and disable oxygen free radicals that are produced by exposure to sunlight and air pollution. These antioxidants are also involved in the activation of gene expression and the control of cell differentiation.
When combined together, vitamin C, vitamin E, and beta-carotene produce and important antioxidant trio that plays a huge role in fighting oxidative and inflammatory events. There are several other antioxidants that should be noted due to their ability to work synergistically with the vitamin C, vitamin E, and beta-carotene trio. These include vitamin A, alpha-lipoic acid, lycopene, coenzyme Q10, and the antioxidant mineral, selenium. In order to determine whether a nutrient provides antioxidant support, scientists question whether the product contains vitamin C, vitamin E, vitamin A, beta-carotene, alpha-lipoic acid, lycopene, coenzyme Q10, and selenium and to what strength these vitamins and minerals are per serving.