According to experts, one way to restore or boost immunity is an extra intake of fruit and vegetables. The effect is much more powerful when coupled with exercise. Nutritionists suggest that people eat six or more kinds of vegetables and fruit of five colors three times a day. The most important thing is to eat seasonal foods. Nutritionists recommend five spring vegetables and strawberries for refreshment and to boost immunity. Spring vegetables have abundant vitamins and minerals that prevent eaters from catching colds and help boost immune system. Water parsley helps the secretion of toxins from the body. Eating seasonal vegetables is sometimes better than taking medicine. Don’t forget that in order to enjoy vegetables and keep healthy, one should refrain from adding salt.