One of the most common symptoms of a fever is a sudden loss of appetite. Even your favorite foods may seem unappealing, leaving you with little desire to eat. According to medical experts, this isn't unusual—it's part of the body's natural response to infection.
When bacteria or viruses enter the body, the immune system raises the body's temperature to help fight the infection. Along with fever, symptoms such as headaches, body aches, fatigue, and reduced appetite often appear.
Why Does Hunger Decrease During a Fever?
According to Dr. Ravindra Gupta, Head of Internal Medicine at CK Birla Hospital, Gurugram, the body releases immune chemicals known as cytokines during an infection. These chemicals can temporarily suppress the brain's hunger signals, allowing the body to focus its energy on fighting the infection rather than digesting food.
Several other factors can also contribute to a reduced appetite, including:
- Temporary changes in taste and smell caused by viral or bacterial infections.
- Weakness, fatigue, and body aches that reduce the desire to eat.
- Nausea or throat pain, making eating uncomfortable.
- In some cases, infections affecting the liver may also reduce appetite.
Why It's Still Important to Eat
Although you may not feel hungry, your body's nutritional needs actually increase during illness.
According to Dr. R.R. Dutta, Head of Internal Medicine at Paras Health, Gurugram, going without food for long periods can slow recovery and leave the body weaker. Instead of large meals, patients should aim for small, frequent, easy-to-digest meals while staying well hydrated.
Adequate intake of fluids, electrolytes, protein, and other nutrients helps support the immune system and recovery process.
Foods That Are Easy to Eat During a Fever
If your appetite is low, try light and nourishing foods such as:
- Moong dal khichdi
- Porridge or oats
- Vegetable soup
- Coconut water
- Fresh fruits like banana, apple, and papaya
- Boiled vegetables
- Plain yogurt (if you don't have a sore throat and your doctor hasn't advised against it)
Choose foods that are gentle on the stomach and easy to digest while avoiding heavy or oily meals.
When Should You See a Doctor?
A temporary loss of appetite is common during a fever, but medical attention is important if:
- The fever remains high or persists for several days.
- You are unable to eat or drink for an extended period.
- Vomiting is persistent.
- Severe weakness or dehydration develops.
Maintaining hydration, eating small nutritious meals when possible, and getting adequate rest can help the body recover more effectively while fighting an infection.
