Importantly, consuming enough potassium-rich foods helps offset the hypertensive effects of sodium. Imbalance in your sodium-potassium ratio not only can lead to hypertension (high blood pressure) but may also contribute to heart disease and stroke.

2. Magnesium
An average avocado contains about 40 mg of magnesium, which is about 10 percent of the recommended daily value. Magnesium is a mineral used by every organ in your body, especially your heart, muscles and kidneys. If you suffer from unexplained fatigue or weakness, abnormal heart rhythms, or even muscle spasms and eye twitches, low levels of magnesium could be to blame.

3. Vitamins C and E
Vitamins C and E are important antioxidants on their own, but put them together, the way they are in avocado, and the real magic happens. Avocados are one of the few foods that contain significant levels of both vitamins C and E.

Vitamin C plays an important role in recycling vitamin E to maintain circulatory antioxidant protection ... A combination of vitamin C and E can help slow plaque buildup, which could help prevent a heart attack or stroke.

4. Fiber
Avocados are surprisingly high in fiber, with about 4.6 grams in half an avocado. Fiber plays an important role in your digestive, heart and skin health, and may improve blood sugar control, weight management and more. In fact, their fiber content appears to be one of the reasons why avocados are so good for weight management and blood sugar support.

Eating just one-half of a fresh avocado with lunch may satiate you if you're overweight, which will help prevent unnecessary snacking later. Also, avocados appear helpful for regulating blood sugar levels.

5. Low risk of chemical contamination
Avocados are rated as one of the safest commercial crops in terms of pesticide application, and this is largely because their thick skins protect the inner fruit from pesticides. Hence, there’s no real need to spend extra money on organic avocados.