Due to their high levels of healthy fats and protein, nuts make an excellent snack alternative for anyone thinking of heart health. But in addition to their high fat and protein content, almonds contain plenty of vitamin E and fiber. Both of these support healthy artery function and robust cardiovascular function. If almonds aren’t really your thing, why not walnuts instead? They contain loads of alpha-linolenic acid, the same compound found in chia seeds. It reduces blood pressure, inflammation and keeps things running smoothly in your arteries.