Homocysteine is an intermediary amino acid produced by the breakdown of methionine in the diet. High blood levels of homocysteine damage artery walls, contributing to the development of atherosclerosis. Three vitamins taken in combination reduce homocysteine levels: vitamin B-6, vitamin B-12, and folic acid.
See also the chapter, “Unplug the Arteries”, in NUTRITIONAL SOLUTIONS FOR 88 CONDITIONS (available at Amazon.com)
Example of arterial cleansing formula: https://vitamost.club/products/rtre-cardiovascular-nutrition-vitalized