When you’re sick, the best foods are ones that keep you hydrated, are easy to digest, and help your body fight off infection. What you should eat depends on your symptoms: a stomach bug calls for bland, gentle foods, while a cold or flu responds well to warm broths, honey, and plenty of fluids. Here’s a practical breakdown by symptom.
Cold or Flu: Broth, Soup, and Warm Liquids
Chicken soup isn’t just comfort food. A study published in the journal CHEST found that chicken soup significantly inhibited the movement of white blood cells called neutrophils in a concentration-dependent manner. Neutrophils drive the inflammatory response that causes congestion, sore throat, and that general “stuffed up” misery. By mildly reducing that inflammation, chicken soup can ease upper respiratory symptoms at their root. The effect came from the broth itself, not the chunks of chicken or vegetables, so even a simple clear broth helps.
Beyond the anti-inflammatory benefits, warm liquids loosen mucus, keep your throat moist, and deliver calories when you don’t feel like chewing. Good options include chicken or vegetable broth, miso soup, and warm water with lemon. If you have a sore throat specifically, both warm and cold liquids work but through different mechanisms. Warm drinks relax the muscles around your throat and improve blood flow to the area. Cold drinks numb the pain and reduce swelling by narrowing blood vessels. Try both and go with whatever feels better.
Honey for Coughs
Honey coats and soothes an irritated throat, and it works as a legitimate cough suppressant. For children ages 1 and older, half a teaspoon to one teaspoon is an effective dose. Adults can take a full tablespoon straight or stir it into warm tea. One important safety note: never give honey to a baby younger than 1 year old, because of the risk of infant botulism.
Stomach Bug: Start Bland, Then Expand
If you’re dealing with nausea, vomiting, or diarrhea, your gut needs gentle foods that won’t make things worse. The classic BRAT diet (bananas, rice, applesauce, toast) still has a place as a short-term strategy. These foods are low in fiber, easy to digest, and unlikely to irritate your stomach further. You can also add mashed potatoes without the skin, plain oatmeal, or simple crackers.
The key word is “short-term.” The BRAT diet isn’t nutritionally complete, so you shouldn’t stick with it for more than a day or two. As soon as your stomach can handle it, start adding other bland, low-fat foods: plain grilled chicken, steamed vegetables, eggs, or yogurt. The goal is to get back to a balanced diet as quickly as your body allows.
Ginger for Nausea
Ginger contains natural compounds called gingerols and shogaols that have genuine antiemetic (anti-nausea) properties. Research suggests that taking 1 gram or more of ginger daily for at least three days can reduce acute vomiting. You don’t need a supplement to get benefits. Ginger tea, ginger ale made with real ginger, or even small slices of fresh ginger steeped in hot water can help settle your stomach. If you do use ginger supplements, be cautious with the dose, since it’s easy to take more than you realize in capsule form.
Hydration Matters More Than Food
When you’re sick, staying hydrated is more important than eating. Fever, sweating, vomiting, and diarrhea all pull fluid and electrolytes out of your body faster than usual. The NHS recommends 6 to 8 glasses of fluid daily as a baseline, with extra when you’re ill. Water is the simplest choice, but it’s not always the best one if you’ve been losing fluids rapidly.
Your body absorbs water most efficiently when it’s paired with a small amount of sugar and salt. That’s the principle behind the WHO’s oral rehydration solution, which uses a 1:1 ratio of sodium to glucose. You don’t need to mix a precise formula at home. Diluted juice, sports drinks, or broth all provide that combination of fluid, sugar, and electrolytes. If plain water is all you can keep down, that’s fine too.
Zinc at the First Sign of a Cold
Zinc lozenges can shorten the duration of a cold, but only at the right dose and timing. A systematic review found that doses below 75 milligrams per day had no effect, while doses of 80 to 92 milligrams per day consistently shortened colds. That typically means dissolving a lozenge every two to three waking hours. The catch is that zinc only helps if you start within the first 24 hours of symptoms. Once a cold is fully established, the benefit drops off significantly.
Dairy Is Fine
You may have heard that milk makes mucus worse. It doesn’t. Research dating back decades, including studies in children with asthma, has found no connection between dairy consumption and increased phlegm production. What actually happens is that milk and saliva mix to create a slightly thick coating in your mouth and throat, which can feel like mucus but isn’t. If yogurt, cheese, or milk sounds appealing when you’re sick, go ahead. Yogurt in particular provides protein and probiotics that support recovery.
What to Skip While You’re Sick
Heavily sugary foods are the main thing worth avoiding. High sugar intake puts extra stress on your immune system by making white blood cells work harder. It can also trigger an inflammatory response that competes with the immune activity your body needs to fight off infection. This doesn’t mean you need to avoid all sugar. The small amounts in fruit, juice, or a sports drink are fine and help with hydration. But loading up on candy, soda, or pastries while you’re fighting something off isn’t doing your body any favors.
Alcohol is another obvious skip. It dehydrates you and suppresses immune function. Spicy foods can irritate an already upset stomach or inflamed throat, so save those for when you’re feeling better. Fried and greasy foods are harder to digest and can worsen nausea. Stick with simple, mild flavors until your appetite returns to normal.
A Simple Sick-Day Eating Plan
- Morning: Plain oatmeal or toast with a small amount of honey, ginger tea
- Midday: Chicken soup or broth with crackers, diluted juice or an electrolyte drink
- Afternoon: Banana, applesauce, or yogurt
- Evening: Rice with steamed vegetables or plain chicken, warm broth
- Throughout the day: Small, frequent sips of water, broth, or electrolyte drinks rather than large amounts at once
The most important principle is to eat what you can tolerate. If your appetite is gone, focus on fluids and try small amounts of bland food every few hours. Your body will tell you when it’s ready for more.