Richest food source of vitamin C

Kakadu plums contain the greatest naturally reported level of vitamin C of any food on the planet. In fact, 3.5 ounces (100 grams) of the fruit meets more than 3,000% of your daily requirements. For comparison, the same amount of oranges contains 59.1% of the DV, whereas the same amount of blueberries contains only 10.8% of the DV. Vitamin C is a potent antioxidant that strengthens the immune system, lowers oxidative stress, and may aid in collagen formation, iron absorption, heart health, memory, and cognition. In people with high blood pressure, for example, a 500-mg dose of vitamin C reduced systolic blood pressure (the top number) and diastolic blood pressure by 4.85 mm Hg.

A review of 15 research also found that those with high vitamin C intake had a 16% lower chance of developing heart disease than those with low vitamin C intake. Consuming foods strong in vitamin C can also help iron from plants be absorbed. In fact, increasing the vitamin C content of a meal by 100 mg can increase iron absorption by 67%. People who are vegetarians, vegans, and those who are iron deficient could find this to be especially helpful. Kakadu plums lose a significant amount of their vitamin C after being picked, thus the fruit is typically frozen before being shipped and sold. The amount of vitamin C in these fruits is also diminished when they are cooked.