Mumbai: Colourful fruits and vegetables like carrots, tomatoes and oranges have different antioxidants and phyto chemicals or naturally occuring plant compunds that help in preventing diseases, says Colleen Doyle from American Cancer Society.

However there is no single substance of food that can ward off illness, says the American Cancer Society.

Doyle adds that she does not know which of these antioxidants and phyto chemicals are more protective and this is the reason why people are supposed to eat at least five servings of fruits and vegetables everyday.

The American Dietetic Association on the other hand, advises people to have vegetables like broccoli, spinach and romaine. These protect your eyesight and the immune system.

Red strawberries, cherries, tomatoes and apples help in improving your heart and brain function.

Also Read: Are You Eating the Right Colours?

Yellows and oranges like grapefruit, canteloupe, squash and carrots help in boosting the immune system.

Blueberries, blackberries, purple grapes, eggplant and plums help in reducing cancers and keeping the memory sharp.