Re: clogged arteries!!!
Dr. Caldwell Esselstyn did a study and wrote a book on reversing heart disease. No supplements are recommended.
Here is a 1 hour video by him
http://www.heartattackproof.com/
You would need to use a nutrition calculator to be sure you're getting the right all of the right nutrients. There are many free ones on line.
The CRON (calorie restriction with optimal nutrition) society has a couple, one is called a cronometer, you could google that. Their way is to reduce calories to around 15% below what it would take to be an average healthy weight, they are different in diet to Caldwell Esselstyn, and not likely to be vegetarians as much, whereas Esselstyn recommends strict low fat veganism. CRON folks will also supplement if they are not getting enough of a nutrient.
I think on Esselstyn's diet you would get some fatty acid deficiencies. I know Dean Ornish believes you would.
But, Esselstyn, CRON and Ornish all accomplish a reversal of heart disease they say.