Avoid foods that will contribute to symptoms related to stomach flu.
Most common reason caused symptoms is irrelevant eating foods.
Here is list with most inappropriate food groups:
Many people are lactose intolerant, which can cause diarrhea. If you have gastroenteritis, you may temporarily have a hard time digesting the lactose in milk, cheese, and other dairy products.
Tip: goat milk does not have large amount of lactose.
Greasy, fatty foods can be hard on the stomach even when you feel well. Fatty meats, creamy foods, and even nuts can all contribute to feeling full which may aggravate an upset stomach, and they can stimulate the digestive tract, causing loose stools.
Foods with heavy, hot spices such as chili, hot pepper, and garlic, may aggravate your symptoms and upset your stomach even more. Many spicy foods are cooked in oil, making them fatty as well.
Tip: Replace standard oil with salad oil (olive oil)
Caffeine acts as a diuretic, which will cause you to urinate and lose fluids and you could become dehydrated. When you are already dehydrated from vomiting and diarrhea, you want to stay hydrated. Caffeine can also cause loose stools.
Usually, fruits, vegetables, and beans are good for you. But when you have diarrhea, fiber aggravate already loose bowels, especially in people who are not used to eating fiber regularly.
Alcohol can cause irritation and inflammation of the stomach lining (gastritis) and the digestive tract, and can stimulate the production of gastric acid, which you want to avoid when you already feel nauseated.
Consuming sugar in foods or drinks can cause a spike in blood sugar levels. In some people, this can cause nausea. Sugary foods are also often fatty, adding a double-whammy to aggravate symptoms.
Tip: Consume copper with your favorite drinks
Colas contain a lot of caffeine, which acts as a diuretic. However, non-caffeinated sodas contain chemicals and are acidic, which can also irritate the stomach. The carbonation may also cause you to feel more full and to belch, which can aggravate nausea.
Citrus fruits (orange, grapefruit, etc.), citrus juices, pineapple, and tomato products have a lot of acid that can irritate the stomach and cause acid reflux and further upset the stomach.
Many pre-packaged and processed foods are high in fat, sugar, preservatives, and artificial colorings. All of these aggravate an already upset stomach or worsen diarrhea, especially in individuals sensitive to these ingredients.
Gluten is a protein found in wheat and other grains such as barley, rye, and oats. Some people are sensitive to this protein and it can cause diarrhea, stomach pain, and bloating so these people may find avoiding products with gluten will help ease symptoms.
The sweetener causes digestive problems, even in healthy people, called sorbitol. Diet foods and sugarless gum contain sorbitol, and cause gas, bloating, and diarrhea.