Loss of smell and taste is often viewed as a relatively minor health problem. However, a new study suggests that the consequences of these sensory disorders may be far more serious than commonly assumed. According to research published in the journal Clinical Otolaryngology, the inability to perceive smells and tastes frequently causes a level of psychological distress comparable to that experienced by people living with severe chronic illnesses.

The researchers analyzed data from dozens of scientific studies comparing quality-of-life measures among patients with a wide range of conditions, including diabetes, asthma, heart failure, stroke, and chronic respiratory diseases.

The study’s lead author, Carl Philpott of the Norwich Medical School at University of East Anglia, noted that smell and taste disorders can lead to significant emotional, social, and psychological difficulties, often matching the burden associated with conditions traditionally regarded as disabling.

Patients reported losing enjoyment of food, experiencing difficulties in social interactions, constantly worrying about their safety, and feeling emotionally depleted. Depression and social isolation were particularly common.

For many people, the loss of smell means they can no longer detect smoke from a fire, a gas leak, or spoiled food, creating an ongoing sense of vulnerability.

The researchers emphasized that smell plays a crucial role in the perception of taste. Much of what people identify as the flavor of food actually depends on aromas reaching the olfactory system.

As a result, after losing their sense of smell, familiar foods may seem bland, metallic, or even repulsive. Some individuals lose weight because of reduced appetite, while others overeat in an attempt to compensate by seeking sweeter, saltier, or more intensely flavored foods.

The study found that smell and taste disorders affect nearly every aspect of daily life. They can alter a person’s relationship with family meals, celebrations, gatherings with friends, and other social rituals that are closely tied to food and aromas.

According to the authors, the problem is compounded by the fact that many physicians still regard these symptoms as temporary inconveniences, even though they persist for years in some patients. Specialized clinics remain scarce, and access to treatment is often limited.

The COVID-19 pandemic brought widespread attention to the issue, as millions of people experienced anosmia—the complete loss of smell—and ageusia—the loss of taste. Some later developed parosmia, a condition in which familiar smells become distorted and are perceived as unpleasant or even disgusting. However, the researchers stress that the coronavirus merely highlighted a problem that had existed long before the pandemic.

The authors call on the medical community to take smell and taste disorders more seriously, expand access to specialized care, and invest more heavily in the development of effective treatments. In their view, these conditions are not simply a matter of comfort but an important component of both physical and mental well-being.