Grapes Prevent Heart Attacks
Grapes Prevent Heart Attacks?
Gabe Mirkin, M.D.
A study from France shows that drinking wine regularly helps prevent
second heart attacks, while a study from the University of
Connecticut shows that the source of protection may be a chemical in
grapes, and not the wine itself. In the first study, half of 350
heart attack victims were placed on a typical high-fat Western diet
and half ate the plant-based Mediterranean Diet. In both groups,
wine drinkers had 59 percent fewer second heart attacks (1).
The second study showed that a standardized grape extract with no
alcohol prevented heart muscle damage in rats, but only at a dose of
100 or more mg per kilogram of body weight. The authors showed that
standard grape extract reduced heart levels of malonaldehyde,
superoxide, and hydroxyl radicals in rats, signifying powerful
antioxidant activity when the heart muscle of rats can't get enough
oxygen. Prevention of heart attacks may come from the grapes and not
1) September 17, 2002 Circulation.
2) Cardioprotection with grapes. Journal of Cardiovascular
Pharmacology, 2002, Vol 40, Iss 5, pp 760-767. JH Cui, B Juhasz,
A Tosaki, N Maulik, DK Das. Das DK, Univ Connecticut, Sch Med,
Cardiovasc Res Ctr, Farmington,CT 06030 USA