Studies in both animals and humans indicate that regular consumption of oranges is associated with various health benefits.
Heart disease is currently the world's most common cause of premature death.
Flavonoids in oranges, especially hesperidin, may have protective effects against heart disease.
Clinical studies in humans have found that daily intake of orange juice for 4 weeks has a blood-thinning effect and may reduce blood pressure significantly.
Fibers also seem to play a part. Intake of isolated fibers from citrus fruits has been shown to decrease blood cholesterol levels.
Taken together, it is likely that regular consumption of oranges may help lower the risk of heart disease.
Prevention of Kidney Stones
Oranges are a good source of citric acid and citrates, which are believed to help prevent kidney stone formation.
Potassium citrate is often prescribed to patients with kidney stones. Citrates in oranges seem to have similar effects.
Prevention of Anemia
Anemia, the decrease in the amount of red blood cells or hemoglobin in the blood, is often caused by iron deficiency.
Although oranges are not a good source of iron, they are an excellent source of organic acids, such as vitamin C (ascorbic acid) and citric acid.
Both vitamin C and citric acid can increase the absorption of iron from the digestive tract.
Therefore, when eaten with iron-rich food, oranges can help prevent anemia.