Scientists say that these antioxidant red grapes may offer significant protection against certain types of cancer, heart disease, rheumatoid arthritis, cataracts, and many other chronic and degenerative diseases. The new study on antioxidant red grapes, released in April 9, was conducted by researchers at Creighton University in Omaha. This antioxidant dietary supplement works best when taken with Vitamin C as it seems that both vitamins have synergistic effect when taken in combination. Besides vitamins, antioxidant dietary supplements may be in the form of botanicals. Green tea, for example, is a rich source of the flavonoid derivatives (polyphenols) epicatechin (EC), epigallocatechin (EGC), epicatechin gallate (ECG), and epigallocatechin gallate (EGCG). They may cause damage to the cell membranes, causing them to weaken. Because free radicals are chemically unstable, they have this bad habit of stealing electrons from stable molecules and in so doing, turn these molecules into free radicals themselves. The result is a chain reaction which can only be stopped with the entrance of antioxidants. In fact, Vitamin C might even provide some protection against loss of sight associated with cataracts in older people. So far the most promising of all antioxidant supplements is Vitamin E, especially when it comes to working against heart disease. People who eat more foods rich in Vitamin E tend to have reduced risk of heart disease. Consuming lots of antioxidant fruits in your diet will help boost the body's defense against free radicals and oxidative stress (damage caused by free radicals). Oxidative stress is a process which many a scientist has linked with the development of chronic and degenerative diseases such as heart disease and cancer. The result is a rapid chain reaction which when left unattended can lead to various degenerative diseases such as heart disease, stroke, cancer, Alzheimer's disease, Parkinson's disease, memory loss, etc. Natural antioxidants are primarily derived from plants. The human body cannot produce its own supply of natural antioxidants; that is why we have to depend solely on our diet to get the amount of antioxidants our body needs.