One study looked at the effects of three cholesterol-lowering diets in 45 overweight and obese people, with one of the test groups consuming one avocado per day.
The avocado group experienced reductions in “bad” LDL cholesterol, including lower levels of small, dense LDL cholesterol, which are believed to significantly raise the risk of heart disease (17Trusted Source).
Another study including 17,567 people showed that those who ate avocados regularly were half as likely to have metabolic syndrome (18Trusted Source).
Avocados are also rich in potassium, a nutrient that’s essential to heart health. In fact, just one avocado supplies 975 milligrams of potassium, or about 28% of the amount that you need in a day (19).
Getting at least 4.7 grams of potassium per day can decrease blood pressure by an average of 8.0/4.1 mmHg, which is associated with a 15% lower risk of stroke (20Trusted Source).