In gastric balloon application, patients need to renew their diet after the application. With a correct diet, the effect of the gastric balloon can be seen better. Weight loss can happen faster and more accurately. After gastric balloon food should be eaten very slowly and chewed well. At this point, it is very effective to eat as small as possible and use small portions. High-calorie, low-nutrient snacks should be avoided. At least 1.5/2 liters of water should be consumed per day. Water or liquids should not be consumed at the same time as the meal. Drinking liquids half an hour before and half an hour after meals is considered ideal. Consumption of carbonated, caffeinated and sugary drinks should be avoided.