When you have a sore throat or if you’re congested, you might not want to eat. You feel worn down and swallowing can be very painful. Yet what you put into your body during those first days of illness may matter as much as the rest you get. The common cold and seasonal influenza are caused by viruses that the immune system must clear on its own, and that fight is metabolically expensive. Fever, inflammation, and the constant repair of irritated mucous membranes steadily drain the body of water, vitamins, minerals, and the antioxidant compounds that normally mop up the free radicals generated during an immune response. When those reserves run low, symptoms feel worse and recovery drags on. This is exactly where targeted foods and antioxidants earn their place: they supply the raw materials for white-blood-cell production, calm the inflammatory cascade, loosen and thin congested mucus, and deliver broad-spectrum antimicrobial compounds that make life harder for the invading virus. Nutrition is not a substitute for medical care, but it is a lever you control at every meal. Here are 12 of the most amazing foods and antioxidants that will help alleviate symptoms and even shorten the duration of any cold or flu, each backed by recognizable mechanisms you can put to work in your own kitchen.
1) Chili Peppers
Scientists have reported that chili peppers are a heart-healthy food with potential to protect against the No. 1 cause of death in the developed world. The compound responsible is capsaicin, the phytochemical that gives peppers their heat. Capsaicin is a natural decongestant: it triggers a gentle, temporary warming sensation that dilates blood vessels in the nasal passages and sinuses, which helps stagnant mucus drain and makes breathing easier when you are stuffed up. It also acts as a counter-irritant, briefly overwhelming pain receptors in a sore throat so the raw, scraping discomfort subsides for a while. Chili peppers are a natural remedy for a sore throat that can often precede a cold or flu. Yes, that feeling of having crushed glass floating around in your throat can often be remedied without conventional over-the-counter analgesics. A mixture of hot red chili powder – often called Cayenne pepper – and orange juice is a very effective remedy for sore throats and congestion in general. The vitamin C in the orange juice supports immune function while the capsaicin clears the airways, so the two work as a simple, inexpensive team. To use it, stir a pinch to a quarter teaspoon of cayenne into a small glass of fresh orange juice, or add the same amount to a cup of warm broth, and sip slowly. Start with a tiny amount if you are sensitive to spice, and avoid it on an empty stomach or for very young children, since the heat can irritate sensitive tissue rather than soothe it. Used sensibly, chili pepper is one of the fastest ways to reopen clogged sinuses.
2) Honey
“The unique property of honey lies in its ability to fight infection on multiple levels, making it more difficult for bacteria to develop resistance,” said study leader Susan M. Meschwitz, Ph.D. That is, it uses a combination of weapons, including hydrogen peroxide, acidity, osmotic effect, high sugar concentration and polyphenols — all of which actively kill bacterial cells, she explained. The hydrogen peroxide is produced gradually by enzymes in the honey and delivers a steady, low-level antiseptic action. The acidity, with a natural pH that sits well below neutral, makes the environment hostile to many microbes. The osmotic effect, which is the result of the high sugar concentration in honey, draws water from the bacterial cells, dehydrating and killing them. Honey is one of the most incredible non-perishable foods that can kill almost every type of bacteria. Beyond bacteria, honey forms a soothing coating over an irritated throat, which is why it is so effective at calming a cough: it reduces the urge to cough and lets inflamed tissue rest. The polyphenols and flavonoids in darker, minimally processed honeys add antioxidant support that helps the body recover. To get the benefit, stir a teaspoon of raw honey into herbal tea, warm lemon water, or take it straight by the spoonful. Note that honey should never be given to infants under one year of age because of the rare risk of botulism spores; for older children and adults it is both safe and remarkably effective, and several studies have found it comparable to or better than common over-the-counter cough suppressants for nighttime coughing.
3) Turmeric
Turmeric is fast becoming a popular remedy for just about everything that ails you. It appears to outperform many pharmaceuticals in its effects against several chronic, debilitating diseases and does so with virtually no adverse side effects. The active compound is curcumin, a bright yellow polyphenol celebrated for both its anti-inflammatory and antioxidant strength. Curcumin helps quiet the inflammatory signaling molecules that flare up during infection, which can ease the achiness and swelling that accompany a cold or flu. The combination of honey with turmeric powder is an excellent remedy for a hacking cough, and the pair is often mixed into what fans call “golden honey” to be taken by the spoonful. The research found that a substance in turmeric, curcumin, may outperform the pneumococcal vaccine in providing long-lasting protection against potentially deadly lung damage in infants. Turmeric has strong anti-inflammatory and anti-oxidant properties and turmeric tea has been used extensively worldwide for colds, congestion, headache, and sore throats. To brew it, simmer a teaspoon of ground turmeric in milk or water with a pinch of black pepper – piperine from the pepper markedly improves curcumin absorption – then sweeten with honey and add a squeeze of lemon. Drink it warm to calm a congested chest and aching head. Because curcumin is fat-soluble, pairing the tea with a little healthy fat, such as a splash of milk or a drop of coconut oil, further improves how much your body can use. As a precaution, those on blood-thinning medication should check with a clinician before taking large amounts, and anyone bothered by its deep staining color should mix it carefully to avoid marking clothing and countertops.
4) Ginger
Alongside turmeric, ginger is one of the world’s most potent disease-fighting spices. The use of ginger is numero uno when it comes to curing a common cold, cough, and relieving respiratory symptoms. Its bite comes from gingerol and shogaol, pungent compounds with well-documented anti-inflammatory, antiviral, and antibacterial activity. With its high levels of Vitamin C, magnesium, and other minerals, ginger root is extremely beneficial for health. Vitamin C feeds the immune cells that engulf pathogens, magnesium supports muscle relaxation and restful sleep, and the mineral content helps replace what is lost through fever and sweating. Ginger is also a classic remedy for nausea, which makes it especially welcome when a flu bug upsets the stomach. Once made into tea, you can add peppermint, honey, or lemon to make this beverage into an incredible tea with immunity boosters known to reduce inflammation and prevent many illnesses. To prepare it, slice a thumb-sized piece of fresh ginger, simmer it in water for ten to fifteen minutes, then strain and finish with a teaspoon of honey and a wedge of lemon. Peppermint adds a cooling decongestant effect that opens the airways. Sip the tea warm throughout the day; the steam alone helps loosen chest congestion while the compounds inside work from within. Fresh ginger is preferable to powdered for this purpose because it retains more of the volatile oils that give the root its medicinal punch, though ground ginger remains a useful standby when fresh is unavailable.
5) Apple Cider Vinegar
Apple cider vinegar is purported to treat numerous diseases, health conditions, and annoyances. It eases digestion, prevents flu, reduces inflammation, kills fungus, regulates pH balance, and washes toxins from the body. The active ingredient is acetic acid, a mild acid that can help rebalance the gut environment and create conditions less friendly to pathogens. Some alternative practitioners recommend using apple cider vinegar to restore alkaline acid balance, reasoning that supporting the body’s natural pH buffering reduces the stress of fighting infection. Used as a gargle, a tablespoon of vinegar diluted in warm water can temporarily soothe a sore, tickly throat by clearing mucus and calming irritation. As a drink, one to two tablespoons stirred into a large glass of water makes a tart tonic that many people find helps settle digestion and curb the sluggish feeling that comes with being sick. Here are 8 more reasons this powerful health tonic makes your kitchen your best pharmacy: it may help stabilize blood sugar, support healthy weight, aid nutrient absorption, act as a gentle preservative, freshen breath when used as a mouth rinse, soften produce for easier digestion, complement salad dressings that deliver other immune nutrients, and serve as a base for homemade wellness shots. The single most important safety note is dilution. Apple cider vinegar is strongly acidic and can erode tooth enamel or irritate the esophagus if taken straight. Always dilute it, rinse your mouth with plain water afterward, and avoid it if you have active heartburn or a sensitive stomach. Used thoughtfully, it is a cheap, shelf-stable ally during cold and flu season.
6) Lemon
Lemon juice decreases the strength of the cold and flu virus in the body and reduces phlegm. They are both anti-bacterial and anti-viral. The power behind the lemon is its rich load of vitamin C and a family of plant compounds called bioflavonoids that support capillary health and immune resilience. Vitamin C is a water-soluble antioxidant that the body cannot store, so a steady supply during illness helps replenish what infection and stress consume. Lemon also encourages the body to flush thinned mucus, which is why a warm lemon drink can loosen a stubborn chest or head cold. Add lemon juice to your tea or make hot or cold lemonade with honey to build resistance to cold and flu, and speed up healing if you do succumb. Lemons are loaded with vitamin C, which is known to support the body’s natural defenses. Lemon water can fight throat infections thanks to its antibacterial property, and the gentle acidity helps break down the film of mucus that viruses and bacteria cling to. A simple daily habit is to start the morning with warm water, the juice of half a lemon, and a teaspoon of honey; the warmth opens the sinuses while the vitamin C and honey do their supporting work. Here’s a simple recipe using lemons and garlic during the cold and flu season that will supercharge your immune system: crush several cloves of garlic, let them sit ten minutes to activate allicin, then combine with fresh lemon juice, a little raw honey, and warm water for a potent immunity shot. Fresh lemons are best, since bottled concentrates lose much of the fragile vitamin C to processing and storage.
7) Cinnamon
Cinnamon may merit a place in your medicine cabinet as well as in your spice rack. Cinnamon is one of the most potent antioxidants in the world and is most certainly a superfood. Its strength comes from compounds such as cinnamaldehyde, which give cinnamon both its warm flavor and its ability to fight bacteria, fungi, and inflammation. A warm cinnamon drink can also improve circulation, which helps the body deliver immune cells where they are needed and carries away the waste products of infection. Did you know that a teaspoon of raw honey and a 1/4 teaspoon of cinnamon will usually knock out a cold within a day or two? This classic combination pairs honey’s antimicrobial coating with cinnamon’s warming, circulation-boosting action, and many people take it straight or stirred into tea at the first sign of symptoms. If you are to maximize the medicinal value of cinnamon, make sure you are not purchasing cassia. It must also be non-irradiated which will be labeled as such. True Ceylon cinnamon, often called “Mexican” or “real” cinnamon, is lower in coumarin, a compound found in high amounts in cassia that can stress the liver when consumed daily in large quantities, so choosing the right variety matters for anyone using cinnamon as a regular remedy. Sprinkle it into oatmeal, stir it into milk or herbal tea, or blend it with honey as described above. As with any warming spice, keep portions modest and avoid it if you are pregnant, nursing, or on blood-sugar or blood-thinning medication without first checking with a clinician, since cinnamon can influence both.
8) Garlic
Garlic is probably nature’s most potent food. It is one of the reasons people who eat the Mediterranean diet live such long healthy lives. The star compound is allicin, released when garlic is crushed or chopped and given a few minutes to react with air. Allicin is a sulfur-based molecule with broad antimicrobial reach against bacteria, viruses, and fungi. A significant finding from Washington State University showed that garlic is 100 times more effective than two popular antibiotics. That remarkable result points to why garlic has been trusted across cultures for centuries as both food and medicine. A soup based on more than 50 cloves of garlic, onions, thyme, and lemon will destroy almost any virus that enters its path including colds, flu and even norovirus. The onions contribute their own quercetin and sulfur compounds, the thyme adds antiseptic oils, and the lemon brings vitamin C, making the soup a full-spectrum immune broth. To activate the most allicin, crush or mince raw garlic, let it rest ten minutes, then add it to food near the end of cooking or eat it lightly cooked to preserve the active compounds. Although a few garlic powder supplements are able to generate some allicin within the stomach, the amount converted, if any is converted at all, is dependant upon optimal stomach conditions. If you are to supplement with garlic, try AlliMAX which is the only nutraceutical containing a proprietary process through which the naturally occurring allicin in garlic is extracted, stabilized, and concentrated. A practical note: eating garlic raw delivers the strongest effect, but it is pungent, so build up gradually and keep breath-friendly habits in mind if you will be around others.
9) Elderberry
Elderberry has been valued in traditional medicine for generations, and modern interest has only grown as researchers look more closely at how it works. The berries and flowers of the European black elder tree are packed with anthocyanins, the dark pigments that give the fruit its deep purple color and act as powerful antioxidants. Elderberry is especially relevant during cold and flu season because it appears to act directly on the virus rather than only supporting the body’s general defenses, which makes it a unique entry on this list of immune-friendly foods.
Compounds in elderberry bind viruses before they can penetrate the walls of cells, thereby inhibiting their ability to spread. By blocking the virus at the doorway of the cell, elderberry helps keep an initial infection from multiplying out of control and can reduce the load your immune system has to fight. Since elderberry is nontoxic when cooked, it is safe for children, which is a meaningful advantage for parents looking for gentle, food-based support during a family cold. The hot tea from the flowers and juice from the berries promotes sweating preferably adding on lemon juice and honey which is soothing for upper respiratory infections. The sweating can help the body cool a low fever while the honey and lemon calm the throat and thin mucus. The tea is also considered to be anti-rheumatic, laxative, and detoxifying, traditional actions that together support the body’s efforts to flush waste and restore balance. A liquid extract from black elderberry may inhibit the growth of pathogenic bacteria by 99 percent at the highest concentrations, a feat no anti-bacterial drugs can match. When choosing elderberry, use cooked or properly prepared products, since raw elderberries, seeds, and leaves contain compounds that can cause stomach upset; cooking removes them and leaves the beneficial antioxidants intact. Syrups, lozenges, and teas made from cooked elderberry are widely available, and a spoonful of syrup stirred into warm water makes a pleasant daily tonic while symptoms are active.
