The best foods to eat when you’re sick depend on what you’re dealing with, but a few staples work across the board: chicken soup, broth-based liquids, ginger, honey, and simple whole foods that won’t overwhelm your stomach. The goal is to stay hydrated, give your immune system the raw materials it needs, and avoid making symptoms worse.
Chicken Soup Actually Works
Chicken soup isn’t just comfort food. A well-known lab study from the University of Nebraska Medical Center found that chicken soup significantly inhibited the movement of white blood cells called neutrophils, which are responsible for the inflammation that causes congestion, sore throat, and that overall “stuffed up” feeling. The effect was concentration-dependent, meaning stronger soup worked better. Both the chicken and the vegetables in the recipe showed anti-inflammatory activity on their own, but the complete soup was the most effective combination.
Commercial soups varied widely in how well they worked, so homemade versions with real chicken and plenty of vegetables are your best bet. Beyond the anti-inflammatory benefit, soup delivers fluid, electrolytes from the salt, and easily digestible protein from the chicken, all in a form that goes down easy when you don’t have much appetite.
Why Hydration Matters More Than Food
When you have a fever, your body loses water faster than normal. For every degree Celsius your temperature rises above 38°C (about 100.4°F), your fluid loss through the skin increases by roughly 10%. If you’re also breathing rapidly, as many people do with respiratory infections, water loss through your lungs can jump by 50% or more. That adds up quickly.
Water is fine, but it doesn’t replace the sodium and potassium you lose through sweat. Broth, diluted fruit juice, coconut water, and oral rehydration drinks all do a better job of keeping your electrolyte balance stable. If plain water is all you can manage, that still counts. The priority is drinking consistently throughout the day rather than trying to gulp large amounts at once, which can upset an already sensitive stomach.
Honey for Coughs
If a cough is keeping you up at night, honey is one of the most effective remedies available. A clinical trial comparing honey to two common over-the-counter cough suppressants found that a 2.5 mL dose of honey (about half a teaspoon) before bed reduced cough frequency and improved sleep quality significantly more than either medication. Honey coats and soothes the throat, and it has mild antimicrobial properties.
Stir it into warm tea or take it straight. Just avoid giving honey to children under one year old due to the risk of botulism.
Ginger for Nausea
Ginger is one of the most studied natural remedies for nausea and vomiting. Clinical trials consistently show benefits at a daily dose of about 1,000 mg, which is roughly half a teaspoon of fresh grated ginger. You can get it through ginger tea (steep sliced fresh ginger in hot water for 10 minutes), ginger chews, or ginger ale made with real ginger rather than just flavoring.
The FDA considers up to 4 grams of ginger daily to be safe, so there’s a wide margin. If you’re dealing with a stomach bug and can barely keep anything down, sipping ginger tea slowly is one of the gentlest ways to calm nausea while also getting fluids in.
What to Eat With a Stomach Bug
The classic BRAT diet (bananas, rice, applesauce, toast) has been recommended for decades, but there’s no actual research proving it works better than other bland foods. Harvard Health notes it’s reasonable to follow for a day or two when you’re dealing with stomach flu, food poisoning, or traveler’s diarrhea, but there’s no reason to limit yourself to just those four items.
Once your stomach starts to settle, you can branch out to cooked squash, carrots, sweet potatoes without skin, avocado, skinless chicken or turkey, fish, and eggs. These are all easy to digest but provide the protein and nutrients your body needs to recover, which the BRAT foods mostly lack. The key is sticking with bland, low-fiber, low-fat options and reintroducing richer foods gradually over a few days.
Probiotic-rich foods like yogurt, kefir, and fermented vegetables can also help. Research in children with acute diarrhea has shown probiotics can reduce the duration of symptoms by 14% to 26%. The evidence in adults is still limited, but there’s little downside to adding a serving of yogurt once you can tolerate it.
Spicy Food: Temporary Relief at Best
You may have heard that spicy food clears congestion. There’s a grain of truth to this. Capsaicin, the compound that makes peppers hot, triggers heat receptors that cause your nose to run and mucus to flow more freely. But according to Baylor College of Medicine, the benefit is entirely temporary. Once the capsaicin wears off, normal mucus production resumes and the congestion comes right back. If your stomach is already irritated, spicy food can make things worse.
Dairy Doesn’t Increase Mucus
The belief that milk makes you more congested is one of the most persistent food myths during cold season. The Mayo Clinic states plainly that drinking milk does not cause the body to produce more phlegm. What actually happens is that milk and saliva mix to create a slightly thick coating in the mouth and throat, which people mistake for extra mucus. Studies in children with asthma found no difference in respiratory symptoms whether they drank dairy milk or soy milk. So if a warm glass of milk or a bowl of yogurt sounds appealing when you’re sick, it won’t make your congestion worse.
Zinc-Rich Foods and Lozenges
Zinc can shorten a cold by a meaningful amount. A meta-analysis of trials using zinc acetate lozenges found that people who started taking them within 24 hours of their first symptoms recovered nearly three days sooner than those who didn’t. The effective dose in those studies was 80 to 92 mg of elemental zinc per day, taken as lozenges dissolved in the mouth every two to three hours while awake.
You won’t hit those levels through food alone, but zinc-rich foods still support your immune system during illness. Shellfish, red meat, pumpkin seeds, chickpeas, and fortified cereals are all good sources. If you want the full cold-shortening effect, zinc lozenges from a pharmacy are the way to go, but start them at the very first sign of symptoms. Waiting even a day or two reduces the benefit significantly.
Foods to Avoid
Some foods make symptoms worse or slow recovery. Fried and greasy foods are hard to digest and can worsen nausea. Alcohol dehydrates you and suppresses immune function. Caffeine in large amounts also contributes to dehydration, though a single cup of tea or coffee is unlikely to cause problems. Very sugary foods and drinks can pull water into the gut and worsen diarrhea. Rough, crunchy foods like chips or raw vegetables can irritate a sore throat.
The simplest rule: if it sounds unappealing, your body is probably telling you something. Stick with warm, soft, mildly flavored foods, drink plenty of fluids, and let your appetite guide how much you eat. Your body can handle a day or two of lighter eating while it focuses on fighting off the infection.