Just checked in to the forum to see what's occuring and can't understand why you haven't had any replies!
Check out this page on the British Heart Foundation website that gives details of their healthy eating diet.
I went to see my GP after I finished my treatment as I knew I needed to lose about 3 and a half stone before my surgeon will consider performing reconstruction surgery on me next year, and he referred me to a dietician who told me to stick to this diet. I have steadily lost 1-2lb every week since July and have now lost 2 and a half stone, so only have one more stone to go.
It's a way of life, more than a "fad" diet. I haven't felt this good in years!
Good luck - you've been through so much - you can do this!