Fruits to Avoid During Fever: What Not to Eat When You’re Sick

When you’re down with a fever, your body is already under stress fighting off infection. This is when your immune system needs all the support it can get — and what you eat plays a crucial role. While fruits are generally considered healthy and packed with vitamins, not all of them are beneficial when you’re running a temperature. In fact, some fruits can make symptoms like cough, cold, and throat irritation worse.

Let’s take a closer look at which fruits you should avoid during a fever, and why steering clear of them can help your recovery process.

1. Oranges 

Though oranges are rich in Vitamin C and usually considered good for immunity, they are not always suitable when you’re sick with a fever — especially if it comes with a cold or cough. Oranges are acidic and can increase mucus production in the body. This extra mucus can make your throat feel more congested and worsen coughing or nasal blockage. For someone who already has a sore throat or respiratory issues, this can delay healing.

Why to avoid: Their acidic nature can irritate the throat and contribute to phlegm build-up, intensifying cold and cough symptoms.

2. Sweet Lime (Mosambi) 

Sweet lime, another citrus fruit, is also acidic despite its mild taste. Like oranges, it can also stimulate mucus production. Many people think of citrus fruits as a go-to for vitamins when ill, but during a fever with cold-like symptoms, they can backfire.

Why to avoid: It can worsen sore throat, lead to more congestion, and possibly upset a sensitive stomach.

3. Mango

Mangoes are a summer favorite, but they aren’t the best choice when you’re feeling feverish. They are high in sugar and generate heat in the body, which might not be ideal when your system is already overheated due to fever. Some people also report throat irritation or a burning sensation after eating mangoes.

Why to avoid: They can cause throat discomfort, worsen inflammation, and might be heavy to digest during illness.

4. General Advice: Avoid Sweet and Acidic Fruits

In general, overly sweet or acidic fruits should be avoided during fever. These can disturb your digestive system, worsen sore throat, and increase mucus production. Your body needs easy-to-digest, soothing foods during recovery — not items that trigger inflammation or indigestion.

Why to avoid: High sugar content can suppress immune function temporarily, and acidity can irritate the digestive tract or throat.

What Should You Eat Instead?

While avoiding the fruits mentioned above, you can still enjoy other more soothing options such as:

Bananas: Gentle on the stomach, easy to digest, and rich in potassium.

Steamed apples or applesauce: Soothing and nutritious without the harsh acidity.

Papaya: Aids digestion and contains Vitamin C without being overly acidic.

Coconut water: Helps keep you hydrated with natural electrolytes.

Fever is your body’s natural way of fighting infection, and supporting it with the right diet can speed up your recovery. While fruits are healthy in general, knowing which ones to avoid temporarily can make a big difference. Stick to calming, easily digestible foods and drink plenty of fluids. As your symptoms ease, you can slowly reintroduce other fruits back into your diet.

Remember, when in doubt, always listen to your body — and if symptoms persist, consult a healthcare professional.