Per the American Heart Assocation:
Men - One to two four-ounce glasses of wine daily
Women - One four-glass of wine daily
They warn not to start drinking if you are not already a drinker.
How about cardiac patients who are diabetics too? The sugar in wine - will it not be detrimental to health? Wine in the broad sense of the term may refer to all kinds of alcoholic beverages. Hence red wine need not only be the choice for the heart conscious, I suppose.
I'd think twice about wine if I had very high triglycerides, since alcohol raises triglycerides. (Once again there is the famous Tim Russert story.)
OTOH, alcohol raises HDL, so it'd be presumably especially beneficial for those with low HDL.
By then daily alcohol can raise BP, so those with hypertension would have to take that into account.Then again, some people get a very pronounced (if short lived) vasodilation effect from alcohol, which should be beneficial for blood pressure.
Studies have shown that it is the alcohol that is beneficial. You can make gin in your bathtub and have a benefit. I recall one study which showed that people who have very little of the enzyme that metabolizes alcohol actually have greater benefit from moderate alcohol consumption.
But then the resveratrol in red wine has benefit of its own - even relating to sirtuins and longevity, apart from any cardiac considerations.
It goes round and round, being a complex subject.
And diabetics might think about dry wines.