When you’re fighting off a cold, flu, or stomach bug, the right foods can ease symptoms, keep you hydrated, and give your body the nutrients it needs to recover faster. No single food is a miracle cure, but several have solid evidence behind them for shortening illness or making you feel less miserable.
Chicken Soup Earns Its Reputation
Chicken soup isn’t just comforting. Lab research from the University of Nebraska Medical Center found that chicken soup inhibits the movement of white blood cells called neutrophils, which drive the inflammatory response behind congestion, sore throat, and that general “sick” feeling. The protein in chicken may also support mucosal repair in the respiratory tract and help modulate your immune response.
Beyond the anti-inflammatory effect, hot broth delivers fluid, sodium, and easily absorbed protein in a form your stomach can handle even when you have no appetite. Adding vegetables like carrots, celery, and onion increases the nutrient density without making the soup harder to digest. If you’re too tired to cook from scratch, even a store-bought version provides the hydration and warmth that matter most.
Staying Hydrated Matters More Than Eating
Fever, sweating, vomiting, and diarrhea all drain fluid fast. Replacing that fluid is the single most important thing you can do while sick. Water works, but it doesn’t replace the sodium and potassium you’re losing. Oral rehydration solutions, available at any pharmacy, are designed with a specific sodium-to-glucose ratio that helps your gut absorb water more efficiently. Even commercial versions with a less-than-ideal ratio (roughly 1:3 sodium to glucose instead of the optimal 1:1) are effective at preventing dehydration.
If you’re dealing with diarrhea or vomiting, sip small amounts frequently rather than gulping large volumes. Coconut water, diluted fruit juice, and broth-based soups all contribute to your fluid intake while providing some calories and electrolytes. Avoid sugary sodas and energy drinks, which can worsen diarrhea by pulling water into the intestines.
Honey for Coughs and Sore Throats
If a persistent cough is keeping you up at night, honey is one of the best options available. A Penn State study found that honey reduced the severity, frequency, and bothersome nature of nighttime cough from upper respiratory infections better than dextromethorphan, the active ingredient in most over-the-counter cough syrups. The cough suppressant, notably, performed no better than no treatment at all.
A spoonful of honey straight, or stirred into warm water or tea, coats the throat and provides temporary relief. Dark honeys like buckwheat tend to have higher antioxidant content. One important caveat: honey should never be given to children under one year old due to the risk of botulism.
Ginger for Nausea
Ginger has centuries of use as a nausea remedy, and modern research supports it for certain types of nausea and vomiting. Clinical trials show that taking up to 1 gram of ginger per day for at least four days significantly reduced acute vomiting compared to placebo. That’s roughly a half-inch piece of fresh ginger root, or the equivalent in ginger tea, ginger chews, or capsules.
The simplest way to use ginger when you’re sick is to steep sliced fresh ginger in hot water for 10 minutes. This also contributes to your fluid intake. Flat ginger ale, despite its reputation, contains very little actual ginger and a lot of sugar, so it’s not an effective substitute.
Zinc Can Shorten a Cold
Zinc lozenges are one of the few supplements with strong evidence for reducing how long a cold lasts. Seven randomized controlled trials found that zinc lozenges providing more than 75 mg of elemental zinc per day shortened cold duration by an average of 33%. That could mean recovering in four days instead of six.
The key is starting early, ideally within 24 hours of your first symptoms. Zinc lozenges dissolve slowly in the mouth, delivering the mineral directly to the throat and nasal passages where cold viruses replicate. Look for zinc acetate or zinc gluconate lozenges. Be aware that zinc can cause nausea on an empty stomach, so pairing it with a small amount of food helps.
Vitamin C: Helpful but Often Overhyped
Loading up on orange juice when you’re sick is a deeply ingrained habit, and vitamin C does play a role in immune function. But the effect is modest, and megadosing carries diminishing returns. Adults need only 75 to 90 mg per day under normal circumstances. The tolerable upper limit is 2,000 mg per day for adults. Going beyond that doesn’t speed recovery and can cause digestive problems like diarrhea and stomach cramps.
You can easily hit a useful intake through food: one medium orange provides about 70 mg, a cup of strawberries about 85 mg, and a cup of cooked broccoli about 100 mg. Bell peppers, kiwi, and tomatoes are also rich sources. If you’re supplementing, staying under 2,000 mg daily keeps you in a safe range.
What to Eat With a Stomach Bug
The classic BRAT diet (bananas, rice, applesauce, toast) has been the go-to advice for decades, but Harvard Health notes that restricting yourself to just those four foods isn’t necessary and can actually slow recovery by depriving your body of protein and other nutrients. A day or two of BRAT foods is fine when your stomach is at its worst, but you should expand your diet as soon as you can tolerate it.
Good options as your stomach settles include brothy soups, oatmeal, boiled potatoes, crackers, and unsweetened dry cereals. Once you’re past the worst of it, add cooked squash, sweet potatoes without skin, avocado, skinless chicken or turkey, fish, and eggs. These are all bland and easy to digest while providing the protein and micronutrients your body needs to rebuild.
Probiotic-Rich Foods for Recovery
Your gut microbiome takes a hit during illness, especially if you’ve had diarrhea or taken antibiotics. Probiotic-rich foods like yogurt, kefir, sauerkraut, and miso can help restore balance. Clinical trials on specific probiotic strains show meaningful reductions in respiratory infection duration. In one study, a multi-strain probiotic cut the average duration of upper respiratory infections roughly in half (about 3 days versus 6 days). Other trials found reductions of about one to two days in symptom duration.
You don’t need a specific supplement to get benefits. Plain yogurt with live active cultures is gentle on the stomach, provides protein, and delivers beneficial bacteria. If dairy doesn’t appeal to you while sick, miso dissolved in hot water serves double duty as a probiotic source and a warm, salty broth.
Milk Does Not Make Mucus Worse
One of the most persistent myths about being sick is that dairy increases mucus production. Clinical evidence does not support this. When milk mixes with saliva, it creates a slightly thick sensation in the mouth and throat that people mistake for extra phlegm, but it doesn’t actually increase mucus volume or change its consistency. Studies of children with asthma found no difference in respiratory symptoms between those drinking dairy milk and those drinking soy milk. If milk, yogurt, or cheese sounds appealing while you’re sick, there’s no medical reason to avoid them.