Updated on June 16, 2025.
Versatile and delicious, the avocado has gained a reputation for supporting good heart health. For example, for one study published in 2022 in the Journal of the American Heart Association, researchers examined 30 years of data from almost 69,000 women and nearly 42,000 men. They found that adults who ate at least one avocado each week had a 16 percent lower risk of cardiovascular disease, such as stroke and heart attack. These adults also had a 21 percent lower risk of coronary heart disease, which occurs when blood vessels have trouble getting oxygen-rich blood to the heart.
Why might avocados support heart health to such a degree? It starts with their fat content.
Avocados and heart-healthy fats
You may have heard that eating too much fat is unhealthy. That’s true for some kinds of fats, like trans fats and saturated fats. Consuming these in excess can lead to low-density lipoprotein (LDL or “bad” cholesterol) collecting in your blood vessels. This increases your risk for heart disease, diabetes, and several other chronic health conditions.
But there are other types of fats you need to maintain good health. Monounsaturated and polyunsaturated fats help lower LDL cholesterol. They also increase high-density lipoprotein (HDL or “good” cholesterol), which helps prevent buildup on your artery walls, lowering heart disease risk.
While meat does contain some of these healthy fats, they’re largely found in plant-based foods such as nuts, seeds, vegetable-based oils like olive oil—and of course, avocado. Avocados are among the best dietary sources of monounsaturated fats, They also contain some polyunsaturated fats—about 15 percent of the recommended daily value (DV) for adults.
But the health benefits of avocados don't stop there. They're also good sources of many other nutrients.
Avocados and fiber
It’s important to get fiber in your diet. Among its many functions, fiber aids digestion, helps you feel full, and plays a role in weight maintenance. Getting enough fiber is also tied to lower inflammation, better blood sugar control, and healthy cholesterol levels. All of these contribute to good heart health.
One-third of a medium avocado contains about 3 grams of dietary fiber, or about 11 percent DV. Healthy adult women should eat about 22 to 28 grams of fiber each day, while men should have between 28 and 34 grams daily.
Vitamins and minerals in avocado
A healthy diet—one that supports good heart health—includes a wide range of nutrients, including several key vitamins and minerals. Avocados are considered to be good sources of the following:
- B vitamins such as niacin and pantothenic acid
- Vitamins C, E, and K
- Folate
- Copper
- Riboflavin
- Potassium
- Manganese
- Magnesium
These nutrients benefit your heart health in a number of different ways. Potassium is vital to controlling blood pressure, for example, while vitamin E helps keep blood vessels wide, allowing for better blood flow.
How to enjoy avocado
Adding avocados to your diet is simple. Cut up a few chunks and include them in salads, sushi, sandwiches, or wraps. Spread mashed on toast for a satisfying midday snack. Or, try these simple recipes:
- Guacamole
- Mixed green salad with walnuts and avocado
- Breakfast burritos
- Mexican tuna tostada recipe
- Corn and basil crab toasts
One note: While avocados benefit your heart, it’s wise to eat them in moderation. Due in part to their fat content, they tend to be high in calories. Eating large amounts may contribute to weight gain over time. Limit yourself to about one-half of an avocado daily. Remember to include other healthy fats, such as olive oil and nuts, in your diet.
