I had a heart scare last year following an intensive weight loss diet, racing arrythmias, absurd blood pressure readings, etc.. I think I upset my electrolytes with some daft advice about drinking a US gallon of water daily and just going too low calorie and training too hard. Regardless, I found myself here. I'm well now (I hope) and won't ever try to lose weight at that speed again. I was discharged by my cardiologist and advised that my longevity would be dependent on keeping active into old age: advice for everyone. BMI is now 25.5, I want to lose 14 lbs in the long term.
Recent blood tests (dramatically affected by plant-based diet), TC was 200-210 in old tests.
Total Cholesterol 139 mg/dl.
LDL 79
HDL 42 (Middling obv. but the TC/HDL ration is 3.33 which is good)
Triglycerides 94.
I had an extremely full bloods panel done but those are the lipids.
Here is the preventative regimen I follow.
My supplements:-
A product called LP5 by Hellenia sold in my country, LP meaning Linus Pauling, 3 drinks a day for a total of
Vitamin C 6g 7500% they say

L-Proline 3g
L-Lysine 3g
L-Glysine 3g
Hydrolised Marine Collagen 2.25g
It has rice bran in it too.
Vegan essentials:
B12 Cyanocobalamin 50 mcg
Vitamin D3 2,000 iu
Omega-3 Algae oil DHA+EPA 450 mg (I also take a tablespoon of flaxseed daily)
For Bones (I supplement my green leafy vegetable intake to get to 1,000 mg total; as a plant-eater I think my calcium needs are a bit different from the general advice):
500 mg Calcium, 250 mg Magnesium
Super K (to get the calcium out of my bloodstream into my bones)
Miscellaneous:
Aged Black Garlic 2,400 mg
Ubiquinol 300 mg
Cranberry Extract 400 mg
Side note: I've just started my elderly mother on the aforementioned LP5 Linus Pauling inspired cocktail. She has been recently diagnosed with CHD. She took 1 g Vitamin C down the years that sadly doesn't seem to have helped her.
Regards
Robert