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In the grape juice study scientist used hamsters on a high fat diet.
They feed them the same amount of grape juice equal to what a 154 pound
human would require. The amount equaled four glasses of juice a day or if
they feed them the fruit it equaled three bunches of grapes a day.. They
compared the grape juice drinking hamsters to hamsters who drank only water.
They also tried the same tests using apples and apple juice. The apple has the
same amount of phenols as grapes but purple grape juice has 2.5 times as much
phenols as apple juice.
Those hamsters given grape juice or the fruit equivalent had lower levels of
cholesterol, less oxidative stress and most important less fat accumulation in
their aorta. The aorta is the main blood vessel supplying the heart and when
clogged brings on a heart attack Of the four tested purple grape juice had the
best and strongest effect, followed by purple grapes, apple juice and apples.
The researchers stated that their results suggest the amount of phenols
contained in a food have a direct effect on the antioxidant properties. The
fruits also contain other antioxidants such as Vitamin C and carotenoids which
could also contribute to their effects. The researchers state their work
"provides encouragement that fruit and fruit juice may have significant clinical
and public relevance." In other words it strongly suggests if you want to help
avoid heart attack eat a goodly amount of grapes and other antioxidant rich
foods and drink a lot of fruit juice especially purple grape. |