You can get a blood test to check your cholesterol level. If you're a man and your HDL level is below 40, or a woman with an HDL level lower than 50, you're more likely to get heart disease. Having an HDL level of at least 60 may help protect you from getting heart disease.
Of course, other things -- like not smoking, being active, and staying at a healthy weight -- also matter for your heart's health. Many of those things also affect your HDL level.
Choose better fats. The healthier choices are monounsaturated and polyunsaturated fats. You’ll find these in plants, nuts, and fish like salmon or tuna. And, like everything you eat, keep your portion sizes small. Fats pack a lot of calories in small amounts.
Alcohol in moderation. Drinking moderate amounts of alcohol is linked to higher HDL levels. If you don't drink now, check with your doctor before you start, since alcohol has some risks not related to cholesterol.
Stop smoking. Kicking the cigarette habit can raise your HDL level.