Eating 40 grams of tomato sauce every day can reduce the possibility of sunburn by 40%, which was written in the April 2009 issue of Yue Ji magazine. There is no difference between small tomatoes and large tomatoes, and there will be no side effects. Don't worry. Tomatoes are easier to absorb when cooked, which is why ketchup is recommended. Tomato skin contains more natural antioxidant lycopene than tomato meat, so it is better to eat it with the skin.