Fruits and vegetables that are high in magnesium include spinach, Swiss chard, soybeans, black beans and navy beans. Other vegetables that are good to excellent sources of magnesium are summer squash, turnip and beet greens, kale and papaya. Broccoli, winter squash, cabbage, asparagus, tomatoes, strawberries and cantaloupe also contain magnesium.
Celery, cauliflower, cucumber, leeks and romaine lettuce are also good sources of magnesium. Watermelon and raspberries are fruits that supply good daily values of magnesium.
Magnesium is a mineral that's necessary for nearly every vital function in the body. Most of the magnesium in the body is stored in the bones, while the rest is found in the body fluids and soft tissues. Most importantly, it is found in the cells, where it activates enzymes that help the body use amino acids and carbohydrates. It also helps regulate the body's pH.
Magnesium helps the body metabolize and absorb other necessary minerals, such as phosphorus and calcium, and vitamins, such as the B vitamins and vitamins C and E. It supports the growth of bones and the nervous system. Magnesium also plays a vital role in heart health by preventing heart attacks. Taken in small doses, it can even work as an antacid.