Observance of the following special nutritional recommendations during the illness (Note: These recommendations do not apply in a severe course of the illness or in dengue hemorrhagic fever):
Sufficient fluid intake! Since there is heavy fluid loss during the course of a febrile illness, fluid intake in adults with kidney and hearthealth should follow the following rule of thumb: for each degree of body temperature above 37 °C, an additional 0.5-1 liters per °C. Teas are best suited.
In case of vomiting: as long as the vomiting continues, the consumption of any food should be avoided. However, the loss of fluids should be compensated absolutely. To do this, it is recommended to add liquids such as herbal teas (fennel, ginger, chamomile, peppermint and cumin tea) or water initially in small quantities, possibly by the spoonful. When vomiting has stopped, carbohydrate foods such as rusks, toast, and pretzel sticks are well tolerated at first. Meals should be small and eaten throughout the day. Stimulants should be avoided during vomiting and for a week afterwards.
After the acute gastric illness, a light full diet is recommended. Within the framework of this diet, the following foods and preparation methods should be avoided, as experience has shown that they often cause discomfort:
Voluminous and fatty meals
Legumes and vegetables such as white cabbage, kale, peppers, sauerkraut, leeks, onions, savoy cabbage, mushrooms.
Raw stone and pome fruit
Fresh bread, wholemeal bread
Hard boiled eggs
Carbonated drinks
Fried, breaded, smoked, very spicy or very sweet foods.
Too cold or too hot food
Diet rich in:
Vitamins (Vitamin C) – Due to the fever, there may be a deficiency of vitamin C. In addition, vitamin C is important for the immune system. Foods rich in vitamin C are vegetables such as spinach and fruits (oranges, strawberries, kiwis, currants), which are also well tolerated during an infection.
