Almonds are pretty hardworking nuts when it comes to lowering your cholesterol. First, they're rich in unsaturated fats that help raise healthy HDL cholesterol while lowering unhealthy LDL. Second, these fats also help make LDL cholesterol less likely to oxidize. This is a fabulous thing, because when LDL oxidizes, it's more likely to gunk up your arteries and cut blood flow to the heart. Snack away. But do keep an eye on portion size. Almonds are high in calories, and all you need are a couple of ounces a day to reap benefits.