Other foods that unclog your arteries include asparagus, avocado, broccoli, chia seeds, fenugreek seeds, and coconut oil. Dietary supplements and nutrients that can help with atherosclerosis include methyl donators like vitamin B6, choline, folic acid, and vitamin B12, as well as antioxidants, such as vitamin C, vitamin E, lutein, zeaxanthin, grape seed extract, and pine bark extract.