Yes, vegan is absolutely the way to go, especially low sodium, too, which a lot of them may not mention too much.
my family has a lot of heart problems and one of us in even on the transplant list, so we've done a LOT of research on diet since there are no cures for what we have and it's not regular blocked arteries.
anyway, the point of my post is that 1. vegan is hands down the best thing you can do for yourself. 2. do NOT change your diet all at once but gradually phase out red meats and salt and then poultry, etc, over a few weeks so your body adjusts. 3. do NOT go raw vegan until you've eaten regular vegan for at least six months and your body is used to it. and then don't go 100% raw overnight either. the digestion of raw vs cooked is different and needs getting used to. also, even people who swear by raw vegan don't usually eat 100% raw all the time (they may for long stretches but usually slip some cooked food in there sometimes).
as for oil and nuts, you need them in small amounts. a handful of almonds a day or a few on top of a salad, and some oil is fine. i think a lot of what they say is scare tactics b/c Americans usually go overboard on so much. we don't know what a real serving size is. 1 oz of oil is a little medicine cup, so 2 of those is all the oil you need on your salad, but we tend to put double or triple, for example.
a nutritionist or a naturopath is a great help. there are also books on how to go vegan, too.
1. it couldn't hurt and 2. try it for at least a month and see how awesome you feel. good luck!