Is My Loss of Appetite an Eating Disorder?

BIPOC person weighing on scale

Zave Smith / Getty Images

A fluctuation in your appetite is normal as your body calibrates how much energy intake you need for the day. Things such as strenuous workouts, illnesses, and mood all play a role in the desire for food in the short term.

But how do you know you when your appetite loss is signaling a more serious issue? In some cases, appetite loss may be a sign of an eating disorder.

Understanding Eating Disorders

There are many reasons why you might be experiencing a loss in appetite. You might wonder if it's a sign of an eating disorder; however, it's possible that it's a sign of other underlying issues.

Eating Disorder Criteria

An eating disorder requires two important things, and both are necessary in order to meet criteria for this condition:

  1. Disordered eating behavior
  2. Psychological impact

Disordered eating behavior may include:

In regard to the psychological aspect of the illness, the mental state of a person with an eating disorder is consumed with the pursuit of thinness. Most of their thoughts and actions revolve around losing another pound. They will do anything to achieve that goal, including behaviors that are dangerous to their health.

Someone dealing with an eating disorder has an obsession and singular motivation to lose weight and that pursuit influences almost all aspects of their life.

Appetite Loss Alone Is Not Indicative of an Eating Disorder

Something to bear in mind is that a person with an eating disorder has not lost their appetite. A common misconception is that those dealing with anorexia nervosa are never hungry. This is untrue as everyone experiences feelings of hunger.

However, someone dealing with anorexia is resisting that hunger in order to achieve the objective of being thinner and thinner. An eating disorder is not merely a loss of appetite and it is not a diet. When an eating disorder is part of the picture, the person is hardly ever satisfied with their body, regardless of their weight.

Eating disorders are complex psychiatric disorders that require medical support. If this describes you, consider reaching out to a mental health care professional or your primary care doctor.

Other Causes of Appetite Loss

If you're concerned about your appetite loss, consider some of the following common causes.


Depression can lead to changes in your appetite. For some, that may mean an increase in the desire to eat, particularly comfort foods. For others, they may experience dramatically diminished hunger.

Individuals with depression who report decreased appetite as one of their symptoms have been found to have less blood flow to the insula, a part of the brain involved in responding to food cues.

Others with depression describe that they do in fact experience hunger but simply don’t 'feel like' eating. There is this lack of motivation to meet their needs.

Depression can make the idea of preparing a meal or even the act of eating itself feel overwhelming and like too much effort.

You should know that some people can be depressed and not in touch with the sadness and anxiety that comes to mind when we think of depression.

Things such as loss of appetite, insomnia, brain fog, and fatigue are what someone may notice first. All of these symptoms may indicate that a depressive disorder might be playing a role in your diminished appetite.


Your medication regimen may be a factor in a loss of appetite. Some medications such as opioid pain relievers slow movement of food throughout the gastrointestinal system which leads to a prolonged feeling of fullness and potentially constipation. These side effects can make food quite unappealing.

Stimulants, typically used to address attention deficit disorder (ADD), are another potential culprit and can have you opting out of your next meal.

There’s no wonder then, that in the past, stimulants were actually prescribed for the purpose of diminishing appetite in someone who wanted to lose weight or manage symptoms of binge eating disorder (BED).


Another cause of a dwindling desire for food is aging. Approximately 15% to 30% of older individuals have what has been called ‘the anorexia of aging.’ This seems to be more common in women and those in the nursing home or assisted living setting.

Decreased Excitement About Food

There are several potential causes for this including the fact that time can dull the senses. How excited you are about the food that you have available is a factor in appetite. So how your meal tastes, smells, and looks play an integral role in how appealing it is to you.

We know that the smell of cookies fresh out the oven or the look of a burger piled high with all the fixings revs up those gastric engines. With age, you can experience a decline in vision, sense of smell, and of taste. All of this can take away from your ability to really appreciate food, and make meals a lot less interesting.

Lower Energy

Furthermore, as you age, your energy demands may decline. This is, in part, because of bone and muscle loss. On average, you can lose up to 1% of skeletal muscle every year. This, in addition to less physical activity, can decrease your caloric needs such that you may find yourself naturally eating less over time.

Difficulty Chewing

Difficulty chewing due to weakened facial muscles, poor dentition, or reduced saliva production are other reasons why eating can become unpleasant or taxing the older you get. Up to 30% of elderly individuals in one study were found to have decreased saliva production, although, much of this was due to one or more of their medications.

Decreased appetite can present serious risk of nutritional deficiency among seniors. There are several liquid meal replacements on the market that are designed to make getting sufficient calories, protein, and even fiber a bit easier. These are widely available and come in a variety of flavors, which increase their appeal and can be a great solution for a diminished appetite.


Many of us associate food with socializing, fun, and holidays with family. These are things that makes food and cooking fun and festive and gives meals some emotional significance. Eating alone on a routine basis can feel boring and dull and squeeze all the joy out of eating. For some, eating alone is simply not as pleasurable and can make the act of eating feel like a tedious chore.


Acute illnesses such as infections can cause the release of chemicals in your body called cytokines, which can lead to inflammation and diminish the appetite. Short-term illness can also lead to pain and/or nausea, which can have you turning up your nose at a sandwich.

Chronic illness such as heart disease, hypothyroidism, chronic obstructive pulmonary disease (COPD), kidney failure, chronic liver disease, Parkinson’s disease and some cancers can all cause biological changes that can lead to waning appetite.

A Word From Verywell

A sustained decrease in your desire to eat or ability to finish meals can be a signal that something is amiss with your physical or mental health.

A sharp drop in food intake can lead to deficiencies in important vitamins and minerals. And remember, you don’t have to be underweight to be at nutritional risk. Do check in with your doctor if you are experiencing sustained loss of appetite in order to rule out any serious underlying causes. 

Was this page helpful?
Article Sources
Verywell Mind uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
  1. Baxter LC. Appetite changes in depressionAm J Psychiatry. 2016;173(4):317-318. doi:10.1176/appi.ajp.2016.16010010

  2. Pilgrim AL, Robinson SM, Sayer AA, Roberts HC. An overview of appetite decline in older peopleNurs Older People. 2015;27(5):29-35. doi:10.7748/nop.27.5.29.e697

Additional Reading