In addition to very high water content ( 93 % ) , eggplant containing potassium - a mineral which helps stimulate the heart, magnesium - known for his role combat stress , calcium - for strengthening bones , vitamin A and C for the immune system . Experts believe that the food is delicious eggplant suitable for hot days , because high water content . During this period , nutritionists advise us to resort to eating eggplant salad , both to quench hunger and thirst . Vegetables are high in fiber , but very poor grăsimi.Aceste vegetables and food contains people who want to keep diets , due to the small number of calories (about 20 calories per 100 g).