The best foods when you’re sick depend on your symptoms, but a few stand out across nearly every illness: chicken soup, honey, ginger, broth-based liquids, and simple whole foods that deliver protein without upsetting your stomach. Your body burns more calories fighting infection (roughly 5 to 13% more for every degree Celsius your temperature rises), so eating enough of the right things genuinely speeds recovery.
Chicken Soup Earns Its Reputation
Chicken soup isn’t just comfort food. Lab research has shown that it significantly inhibits the movement of white blood cells called neutrophils, which drive the inflammatory response that causes congestion, body aches, and swelling. The effect is dose-dependent, meaning more soup produces a stronger anti-inflammatory result. Interestingly, both the chicken and the vegetables in a traditional recipe showed this activity individually, so it’s not one magic ingredient but the combination working together.
Beyond the anti-inflammatory compounds, chicken soup delivers warm liquid (which loosens mucus), salt (which helps with hydration), and protein from the chicken itself. When you’re running a fever, your body breaks down muscle tissue faster than normal to fuel the immune response. Protein-rich foods help offset that. If you can’t manage chunky soup, even plain bone broth gives you fluid, electrolytes, and some protein in a form that’s easy to keep down.
Honey for Coughs and Sore Throats
If a cough is keeping you up at night, honey is one of the most effective remedies available, and it doesn’t require a pharmacy. A study published in The Journal of Pediatrics found that a single dose of buckwheat honey before bedtime significantly reduced cough frequency and improved sleep compared to no treatment. The common over-the-counter cough suppressant dextromethorphan performed no better than doing nothing in the same trial, while honey did.
A spoonful of honey straight, or stirred into warm water or tea, coats the throat and appears to calm the cough reflex. Dark honeys like buckwheat tend to have higher antioxidant content, though any variety helps. One important note: honey should never be given to children under one year old due to the risk of botulism.
Ginger for Nausea
Ginger is one of the most well-studied natural remedies for nausea and vomiting. Its active compounds work by blocking serotonin receptors in the gut, the same pathway targeted by prescription anti-nausea medications. Ginger also helps speed up gastric emptying, which means food moves through your stomach faster instead of sitting there making you feel worse.
Clinical trials suggest that about 1 gram per day (roughly half a teaspoon of ground ginger) taken for at least three days can reduce vomiting by as much as 70%. You can get this from ginger tea made with fresh slices, ginger chews, or even flat ginger ale, though most commercial ginger ales contain very little real ginger. Look for products that list ginger root as an ingredient rather than “natural flavors.”
What to Eat With an Upset Stomach
The classic BRAT diet (bananas, rice, applesauce, toast) has been the go-to recommendation for decades, but it’s more limited than it needs to be. Harvard Health Publishing notes there are no studies comparing the BRAT diet to other approaches, and restricting yourself to just those four foods can leave you short on the protein and nutrients your body needs to recover. A day or two of BRAT is fine as a starting point, but you should expand as soon as your stomach allows.
Good options that are equally gentle but more nutritious include:
- Brothy soups and oatmeal for easy-to-digest calories
- Boiled potatoes and sweet potatoes (without skin) for potassium and starch
- Cooked carrots and squash like butternut or pumpkin
- Plain eggs, skinless chicken, or fish for protein
- Avocado for healthy fats that won’t irritate your stomach
- Crackers and unsweetened dry cereals if you need something light
The goal is bland, low-fiber, easy to digest, but still nutritionally complete enough to support your immune system.
Staying Hydrated Matters More Than Eating
Fever, sweating, vomiting, and diarrhea all drain fluids and electrolytes fast. If you’re too nauseated to eat, hydration should be your first priority. Water alone works for mild illness, but if you’ve been vomiting or have diarrhea, you’re losing sodium and potassium that plain water won’t replace.
You can make a simple oral rehydration solution at home using the World Health Organization’s recipe: about 4 cups of water, half a teaspoon of salt, and 2 tablespoons of sugar. The sugar isn’t just for taste. It activates a transport mechanism in your intestines that pulls sodium and water into your bloodstream more efficiently than water alone. Coconut water, diluted fruit juice, and broth are also reasonable alternatives if you don’t want to mix your own solution.
Spicy Foods for Congestion
If you’re stuffed up, spicy foods can provide real, measurable relief. Capsaicin, the compound that makes peppers hot, activates temperature-sensitive receptors in your nasal passages. This triggers a brief increase in mucus flow (your nose runs), followed by reduced congestion. In clinical trials, capsaicin-based nasal sprays improved congestion within 5 minutes, with effects lasting up to 60 minutes for a single dose.
Hot sauce, cayenne pepper stirred into broth, or spicy ramen all work. The effect is temporary, but it can make eating and breathing easier while you’re at your most congested. If your stomach is already irritated, though, skip this one.
Zinc at the First Sign of a Cold
Zinc lozenges can shorten the duration of a cold, but timing is everything. An analysis of three randomized trials found that zinc acetate lozenges (providing 80 to 92 mg of elemental zinc per day) improved recovery rates when started within 24 hours of the first symptoms. The effective approach was dissolving one lozenge in the mouth every 2 to 3 hours while awake.
The upper limit recommended is 100 mg of elemental zinc per day, and you shouldn’t continue high-dose supplementation beyond the length of your cold. Zinc lozenges can cause a metallic taste and mild nausea, so taking them on a completely empty stomach isn’t ideal. Foods naturally rich in zinc, like shellfish, red meat, pumpkin seeds, and chickpeas, contribute smaller amounts but are worth including in your recovery meals.
Milk Won’t Make Your Cold Worse
One of the most persistent myths about being sick is that dairy increases mucus production. It doesn’t. The Mayo Clinic confirms that drinking milk does not cause the body to make more phlegm. What happens is that milk proteins mix with saliva to create a slightly thick coating in your mouth and throat, which can feel like mucus but isn’t. The sensation fades quickly.
This matters because dairy is one of the easiest ways to get calories and protein when you’re sick. Yogurt, in particular, delivers protein, probiotics, and a smooth texture that’s easy to swallow with a sore throat. If you’ve been avoiding milk, cheese, or yogurt because you thought they’d make your congestion worse, there’s no need to.
Why Protein Matters During Recovery
Your immune system runs on protein. Antibodies are proteins. The signaling molecules that coordinate your immune response are proteins. When you’re fighting an infection, your body pulls amino acids from muscle tissue if you’re not eating enough, which is why people often feel weak and depleted after even a short illness.
You don’t need to force-feed yourself steak, but aim to include some protein at every meal or snack, even if portions are small. Eggs, chicken, fish, Greek yogurt, nut butters, and beans all count. If your appetite is minimal, protein-rich liquids like milk, smoothies, or broth-based soups with shredded chicken can bridge the gap until you feel like eating solid food again.