Here’s why this common symptom occurs, how it can harm you, and what you can do to get back to normal after weeks — or even months — without flavor. Show
By Salma Abdelnour GilmanMedically Reviewed by Jason Paul Chua, MD, PhD Reviewed: March 5, 2021 Medically Reviewed Wedding cake designer Todd Kennedy had no idea what lay ahead when he came down with COVID-19 in March 2020. His symptoms were relatively mild — sore throat, fatigue, a heavy feeling in his chest. Plus, to his dismay, he lost his ability to taste and smell. Almost a year later, his taste buds still aren’t functioning, though his sense of smell is slowly coming back. “Everyone takes for granted things like taste and smell,” says Kennedy, 42, who runs the New York City–based Todd Kennedy Cakes. But in the aftermath of COVID-19, he adds, “the simple pleasures are gone.” For a trained pastry chef like Kennedy, loss of smell and taste is especially disorienting. But anyone who has had this common COVID symptom knows it’s more than just an inconvenience: It can impact everything from nutrition to mental health and even basic household safety. Upwards of 90 percent of COVID-19 patients experience some temporary anosmia, or loss of smell, says Richard Doty, PhD, director of the University of Pennsylvania’s Smell and Taste Center in Philadelphia. “At least presently, we think the major loss is due to the damage to the cells in the periphery of the epithelium,” the tissue on the roof of the nasal cavity that plays a key role in smell detection. While scientists are still studying the connection between the novel coronavirus and anosmia, research by Harvard Medical School neuroscientists, published in July in Science Advances, suggests that the virus does not cause permanent damage to the olfactory neurons, as can sinus infections and autoimmune diseases like multiple sclerosis. 11 Foods And Drinks To Help Soothe COVID-19 SymptomsMarch 9, 2022. If you have a mild case of COVID-19 and are looking for ways to feel better at home, try eating these virus fighting foods. COVID-19 patients are often not even aware of the smell loss at first, and instead notice that food no longer tastes as it should. But smell is usually the underlying issue, says Dr. Doty. “For patients who come to us claiming they have a taste problem, 9 times out of 10 they have a normal taste function, but what they have is a smell dysfunction,” he says. Doty explains, “As we chew food and swallow, puffs of molecules go up through the olfactory receptors and get perceived as taste. If you hold your nose and have some coffee or chocolate, there will be no coffee or chocolate sensation — you get just the bitter or the sweet.” Some patients with anosmia from COVID-19 may find that foods have an unpleasant smell or taste. Anthony Del Signore, MD, director of rhinology at Mount Sinai Union Square in New York City, says he has heard from COVID-19 patients who complain that “things used to smell one way but now they’re rancid.” The good news is that smell and taste usually bounce back, even though it may take a while. “The majority of cases will improve within a matter of months,” says Doty. But for some patients it takes longer. There are indications that long-haul anosmia can result from the virus entering the brain, he adds. “It’s not yet clear why certain people have longer insults to their sense of smells,” says Dr. Del Signore, adding that viral load fluctuations may be another factor. Del Signore himself had COVID-19 in March of last year, and while his sense of smell came back for the most part within a few weeks, “it was a slow and gradual increase to about 90 to 95 percent, give or take.” Not being able to smell can be frustrating, but the symptom can also bring with it more serious risks. “If you have loss of smell, you’re unable to smell rancid food or a gas leak,” says Del Signore. “It’s an everyday safety issue.” The loss can also take a psychological and emotional toll. “Some people become depressed, and people can get despondent if they’re with friends or family and they can’t taste the food,” says Doty. “People don’t relate to their problem, so they learn to shut up about it. It becomes debilitating, and they change their social behaviors, so they become very insular.” Patients who are struggling with anosmia should seek medical attention, even if they’ve since recovered from COVID-19 or are not even sure the virus was the cause. When food doesn’t seem as appealing as it used to, it’s more important than ever to pay attention to what you’re eating, says Whitney Linsenmeyer, PhD, assistant professor of nutrition and dietetics at St. Louis University in Missouri and spokesperson for the Academy of Nutrition and Dietetics. “There’s a risk of unintended weight loss, malnutrition, and dehydration too, because people also get water from the food they eat.” Dr. Linsenmeyer offers these strategies for people living with anosmia: People who have lost their sense of taste and smell because of COVID-19 and who want to try taking an active role in recovering can experiment with a few strategies, at home or with their physician. “I tend to use a saline rinse with a small amount of steroid in it that helps to reduce some of the inflammation around the olfactory bulb and nasal nerves,” Del Signore says, describing a method he is exploring but that has not yet been extensively studied. “Nasal rinses typically need to be prescribed, although neti pots can be [available] over the counter,” he adds. “There’s also interest in looking at fish oil and omega-3 vitamins and the anti-inflammatory properties of those as being helpful with sense of smell issues. We’re running a trial at Mt. Sinai to see if fish oil and omega-3 combinations help with the sense of smell.” more on Coronavirus Brain Fog: A COVID-19 Symptom That May LingerDel Signore has also seen promising results for patients with an approach known as smell therapy. “We’ve been using essential oils, basically as smelling rehab. We typically use lemon, cloves, around three or four different oils.” Rose and eucalyptus are common scents to try. “We tell patients to breathe it in and out and try to remember what it smelled like. It can help to get neural pathways reestablished. You’re just smelling the oil; you’re not putting it inside the nose.” He adds, “It does take a little bit of time, around three to six months, but we’ve seen a good response with that.” The U.K.-based charity Fifth Sense has tips on how to try smell therapy at home. Even though smell therapy has not yet been rigorously studied for COVID-19 patients, Del Signore says, “We do recommend patients at least try it. It’s not really going to hurt anything, and you’re not burning any bridges, so to speak.” Patients Are Devising Their Own Home Cures to Revive Their Sense of Smell and TasteEver since COVID-19 led to his own long-haul battle with smell and taste loss, Todd Kennedy has seen surprising results with a trick he made up himself: “I went to a Starbucks and got an iced chai latte with hazelnut, which is my favorite drink there, and I took a sip of that and put my mask back on. I realized that when I’m breathing into my mask after taking a sip, I felt like I could taste it.” Meanwhile, all kinds of fad treatments have popped up on the internet. One is the burnt orange hack, which suggests roasting an orange over a flame until it’s charred on the outside, then cutting it open, mixing the fruit with brown sugar, and eating it. Raves about the trick abound on TikTok, but does it actually work? “We don’t have research to say this is an effective strategy,” says Linsenmeyer, but she adds that if someone feels a certain food is helping bring back taste or smell — certain Sichuan dishes, for example, made a difference for one New York Times restaurant critic — it’s worth a shot. “If it works for people to eat a curry, say, and they can taste those flavors, it can’t hurt to try.” NEWSLETTERS Sign up for our Daily Health News Newsletter!Enter your email By subscribing you agree to the Terms of Use and Privacy Policy. The Latest in CoronavirusNearly half of coronavirus cases are now due to BQ.1 and BQ.1.1. COVID Rebound Is Real — and Surprisingly CommonThink you’ve fully recovered from COVID-19? Maybe not. Here’s what to do if your symptoms come back. Should You Get the New COVID-19 Booster to Fight Omicron?The new, bivalent COVID-19 booster shots target highly contagious omicron subvariants. 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How risky are repeat infections? By Don RaufOctober 27, 2022Regular Statin Use May Reduce the Risk of Severe COVID-19, Research FindsPeople who take common cholesterol-cutting drugs may significantly lower their likelihood of dying from the coronavirus. By Don RaufOctober 26, 2022New COVID-19 Subvariants Spark Concerns of Winter OutbreakPublic health experts suspect that the fast-spreading, immune-evasive omicron subvariants BQ.1 and BQ.1.1. may soon displace BA.5. How can I get my taste back with a cold?Rinse your mouth with water before eating. Allow hot food and drink to cool a little. You may find that you can taste cold food better if you allow it to come to room temperature. Avoid any unpleasant tasting foods.
How can I get my taste back after a cold and sinus?Get enough sleep and drink plenty of warm fluids to help you get your smell and taste back. Staying hydrated and getting plenty of rest are both good ways to help power your immune system, reduce inflammation and swelling, and dilute excessive mucus build-up caused by an upper respiratory or sinus infection.
How can I restore my taste buds on my tongue?How Do I Recover Damaged Taste Buds?. Choose foods that look good to the eye.. Maintain dental hygiene by properly cleaning your mouth.. Try different food textures, flavors, and temperatures to see which one appeals to you the most.. Increase the amount of protein in your diet.. Can taste buds be restored?A taste bud is good at regenerating; its cells replace themselves every 1-2 weeks. This penchant for regeneration is why one recovers the ability to taste only a few days after burning the tongue on a hot beverage, according to Parnes. Aging may change that ability.
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