HAVING DAIRY PRODUCTS
One piece of advice when you have the flu is to avoid any dairy products. While the case may seem unusual, this is actually sound advice in general for when you are sick.
In cases with bowel issues like flu, stomach viruses, food poisoning or diarrhea, the lactose in dairy products isn’t digested properly and builds up in you. This can lead to your stomach getting aggravated and make matters worse for you.
Even in situations where your digestion process isn’t an issue, it’s better to avoid dairy for other reasons. For one, the dairy products also contain fat and fat is particularly harder to digest when sick. This is why not only should you avoid dairy, but also red meat and fried foods.