Why are we normally advised to take bland and nourishing food when we are sick?

During sickness, the body becomes weak, with a weak digestive system. Thus, doctors advise consuming easily digestible food such as bland and simple food which we can easily digest without troubling the digestive system.

The consumption of nourishing food gives us energy for wear and tear of body and to perform daily activities.

When spicy and more complex food such as junk food is consumed during sickness, it can lead to nausea, vomiting, and prolonged health deterioration.