[DOC] [TLE] Antioxidants and Free radicals [PAR] Antioxidants are intimately involved in the prevention of cellular damage ... Once 
formed these highly reactive radicals can start a chain reaction, like dominoes. ... 
To prevent free radical damage the body has a defense system of antioxidants. ... 
the principle micronutrient (vitamin) antioxidants are vitamin E, beta-carotene,... [DOC] [TLE] Antioxidant - Wikipedia [PAR] An antioxidant is a molecule that inhibits the oxidation of other molecules. 
Oxidation is a chemical reaction that can produce free radicals, leading to chain 
reactions that may damage cells. Antioxidants such as thiols or ascorbic acid (
vitamin C) terminate these chain ... Randomized clinical trials including 
supplements of beta-carotene, vitamin A... [DOC] [TLE] Free radicals, antioxidants and functional foods: Impact on human ... [PAR] [3] Most of the potentially harmful effects of oxygen are due to the formation and ... 
[6] Free radicals attack important macromolecules leading to cell damage and ... 
These are manifested as diseases at certain ages determined by genetic and ... 
cells. Antioxidants like B-carotene or vitamin E play a vital role in the prevention 
of... [DOC] [TLE] Teacher's Guide - American Chemical Society [PAR] Antioxidants reduce cell damage by preventing reactive oxygen species from ... 
Water soluble antioxidants (like vitamin C) prevent damage within the cell. ... 
When beta-carotene enters the body, it is chemically converted to vitamin A. The 
..... Since ROS have the ability to breakdown lipids and proteins (as described in 
the... [DOC] [TLE] Antioxidants (Nutrients) facts, information, pictures | Encyclopedia ... [PAR] Beta-carotene is the most widely known compound in a group known as ... 
radicals directly, reducing their ability to oxidize molecules and cause cellular 
damage. ... Studies have shown that these polyphenols are able to protect red 
blood cells from ... discoloration and delay oxidation of the foods after exposure 
to oxygen. [DOC] [TLE] Antioxidants and Cancer Prevention - National Cancer Institute [PAR] Can antioxidant supplements help prevent cancer? ... The damage to cells 
caused by free radicals, especially the damage to DNA, may play a role in ... 
These antioxidants are called endogenous antioxidants. ... Examples of dietary 
antioxidants include beta-carotene, lycopene, and vitamins A, C, and E (alpha-
tocopherol). [DOC] [TLE] The Truth About Antioxidants | TIME.com [PAR] Aug 6, 2013 ... Free radicals are generated as cells use oxygen to break down food for energy, 
... antioxidants stabilize them and keep the damage to a minimum. ... beta-
carotene, as well as minerals like manganese and selenium. ... For instance, 
certain antioxidants may play a greater role in preventing certain diseases,... [DOC] [TLE] Antioxidants Explained: Why These Compounds Are So Important ... [PAR] Oct 30, 2011 ... Found in many foods, antioxidants fight the oxidation process, a chemical 
reaction that can cause damage to many cells in your body. ... these free radicals 
and protect the cells from attack by oxygen. ... So began several clinical trials in 
which antioxidant supplements like beta carotene and vitamin E were... [DOC] [TLE] How Healthy Nutrition Builds Health, Starting With the Cells (Graphics) [PAR] In addition, certain nutrients also protect your cells from damage, and nutrients in 
... Providing all these nutrients to your cells means eating whole foods since they 
... And, your cells need a high intake of antioxidants, like the vitamin E family .... 
e.g., wheat germ oil; carotenoids like beta-carotene in carrots, and lycopene in... [DOC] [TLE] What Are Carotenoids? - Live Science [PAR] Oct 15, 2015 ... These pigments play an important role in plant health. ... radicals  single 
oxygen atoms that can damage cells by reacting with other ... When lutein is in 
the blood, it can have an antioxidant effect on cholesterol, thereby preventing ... 
other carotenoids like alpha-carotene, lycopene and beta-cryptoxanthin... [DOC] [TLE] Cancer Fighting Foods/Spices - Welcome To Cancer Cure Foundation [PAR] Carrots contain a lot of beta carotene, which may help reduce a wide range of 
cancers ... the activity of immune cells that fight cancer and indirectly

Question: Antioxidants like beta carotene prevent cell damage by these products of oxygen breakdown
Answer: free radicals