1. High in Vitamin C
Oranges are an excellent source of vitamin C. Good intake of vitamin C is associated with a reduced risk of colon cancer as it helps to get of free radicals that cause damage to our DNA.

2. Healthy immune system
Vitamin C, which is also vital for the proper function of a healthy immune system, is good for preventing colds and preventing recurrent ear infections.

3. Prevents skin damage
Anti-oxidants in oranges help protect skin from free radical damage known to cause signs of aging. An orange a day can help you look young even at 50!

4. Keeps blood pressure under check
Oranges, being rich in Vitamins B6, help support the production of hemoglobin and also help keep blood pressure under check due to the presence of magnesium.

5. Lowers cholesterol
According to a study by US and Canadian researchers, a class of compounds found in citrus fruit peels called Polymethoxylated Flavones (PMFs) have the potential to lower cholesterol more effectively than some prescription drugs without side effects.

6. Good eye health
Oranges are a rich source of carotenoid. The Vitamin A present in them play an important role in keeping the mucus membranes in the eyes healthy. Vitamin A is also responsible to prevent age-related muscular degeneration, which in extreme cases can lead to blindness. It also helps eyes to absorb the light.

7. Safeguards against constipation
Oranges have both soluble and insoluble fiber. This helps in keeping your intestines and stomach function smooth, preventing irritable bowel syndrome. Additionally, the fiber helps treat constipation to a greater extent.

Source: timesofindia.indiatimes.com