Do Anxiety Meds Cause Weight Gain?

anxiety and weight gain

Anxiety is a common mental health condition that affects millions of people worldwide. Stress can cause nervousness, fear, worry, panic, and physical reactions such as sweating, trembling, and heart palpitations. Anxiety and weight gain can interfere with daily life and affect well-being and happiness. Fortunately, there are effective treatments for anxiety, such as psychotherapy, relaxation techniques, lifestyle changes, and medication. Medication can aid in reducing the severity and frequency of anxiety symptoms and improving quality of life. However, these drugs can also have unwanted side effects, such as weight gain.

Many individuals who take anxiety medications may have concerns about weight gain, affecting their self-esteem, health, and confidence. Weight gain can also increase the likelihood of developing other health issues such as diabetes, heart disease, and high blood pressure. How do anxiety methods cause weight gain? What can you do to prevent or manage this? This blog post explores these questions and offers helpful tips and resources.

How Do Anxiety Meds Cause Weight Gain?

Different anxiety medications exist, such as antidepressants, antipsychotics, and anxiolytic drugs. Each type of medication works differently in the brain and body to reduce anxiety. However, they can also affect other aspects of the body’s functioning, such as appetite, metabolism, hormones, and energy levels. Some anxiety medications can increase appetite by affecting brain chemicals that regulate hunger and satiety. For example, serotonin is a neurotransmitter that affects mood and appetite. Some antidepressants increase serotonin levels in the brain, which can have different effects depending on the duration of treatment. In the short term, serotonin can reduce impulsivity and increase satiety, leading to weight loss. However, over a long period (longer than a year), serotonin can cause cravings for carbohydrate-rich foods that can lead to weight gain.

Some anxiety medications can slow metabolism by affecting the body’s capacity to metabolize calories and fat, interfering with insulin sensitivity and glucose metabolism. Consequently, the body may retain more fat and increase the risk of developing diabetes. Some anxiety medications can affect the hormones that influence weight regulation. For example, some antidepressants can increase cortisol levels in the body. Cortisol, a hormone discharged when the body experiences stress, helps the body in stressful situations. However, chronically high cortisol levels can cause weight gain by increasing appetite, reducing muscle mass, and promoting fat storage around the abdomen.

Some anxiety-related medications can affect energy levels by causing fatigue or sedation. For example, some anxiolytic drugs, such as benzodiazepines, can cause drowsiness and sleepiness. This can reduce physical activity and exercise, which is essential for maintaining a healthy weight. It is important to note that not all anxiety-related medications cause weight gain. The impact of drugs on weight can vary depending on several factors, including specific medicines, dosage, duration of treatment, genetics, lifestyle habits, and other medical conditions. Some people may experience no weight change or even weight loss while taking medication for anxiety.

How Can You Prevent or Manage Weight Gain from Anxiety Measures?

anxiety and weight gain

If you are concerned about weight gain from anxiety medication, there are steps that can be taken to prevent or manage it. Here are some tips:

  • It is essential to consult your healthcare provider before beginning or altering any medication regimen. Your doctor can help you choose the best remedy for your condition and monitor its effect on your weight. Your healthcare provider may be able to change your dosage or prescribe a different medication to suit your needs.
  • Keep track of your weight and body measurements regularly. This can help you notice any changes in your weight and take appropriate action.
  • A balanced and nutritious diet that meets calorie requirements avoids skipping meals and binge eating. Select foods rich in protein, fibre, vitamins, and minerals to support health.
  • Avoid excessive consumption of foods with high sugar, fat, and salt levels.
  • Drink plenty of water and remain hydrated. Water helps to flush out toxins from the body and keeps you feeling full.
  • Aim for 150 minutes of moderate-intensity weekly exercise to support health and well-being, medication, appetite, and metabolism.
  • Regular exercise and physical activity help burn calories, boost metabolism, build muscles, and improve mood.
  • Aim for 150 minutes of moderate-intensity weekly exercise to support your health and well-being. Aerobic activity to support health, such as walking, jogging, cycling, or swimming. Incorporating strength-training practices into your routine can also help tone the muscles and increase metabolic rate.
  • It is essential to keep stress levels in check and incorporate relaxation techniques into daily routines. Stress can trigger anxiety symptoms and increase cortisol, leading to weight gain. Finding healthy ways to cope with stress, such as meditation, yoga, breathing exercises, or hobbies.
  • Seek professional help if you have concerns about your mental health or weight. You can talk to a therapist, nutritionist, or support group to receive the help and guidance you need.

Check out: Diet Plan For Weight Gain

Why do Anxiety Medications Cause Weight Gain?

Anxiety medications affect the levels of certain chemicals in the brain, such as serotonin, dopamine, norepinephrine, histamine, and muscarinic receptors. These chemicals regulate mood, appetite, sleep, stress responses, and other bodily functions. However, altering the balance of these chemicals can also have unintended consequences on metabolism, such as increasing hunger, reducing energy expenditure, slowing down digestion, and affecting hormones that control fat storage and distribution.

Some anxiety medications can also cause weight gain indirectly by affecting other aspects of one’s lifestyle, such as physical activity, food choices, sleep quality, and coping skills. For example, some anxiety medications can make you feel more tired, drowsy, or sedated, reducing your motivation and ability to exercise regularly. Some anxiety medications can also increase the desire for foods high in carbohydrates, such as bread, pasta, and sweets, which can occur when extra calories are added to the diet. Some anxiety medications can also interfere with sleep patterns, disrupting the circadian rhythm and affecting hormones that regulate hunger and satiety. Finally, anxiety medications can reduce stress and improve mood.

Which Anxiety Medication is More Likely to Cause Weight Gain?

anxiety and weight gain

Not all anxiety medications have the same effect on weight. Some may cause weight gain, others may cause weight loss, and some may have no effect. The amount of weight change also varies from person to person depending on individual factors such as genetics, baseline weight, dosage, duration of treatment, and lifestyle habits.

Generally, anxiety medications that are more likely to cause weight gain are:

  • Tricyclic antidepressants (TCAs) are occasionally used to treat anxiety disorders. They also increase serotonin, norepinephrine, and dopamine levels in the brain. However, they also affect histamine and muscarinic receptors, which can increase appetite and reduce energy expenditure. Some examples of TCAs include amitriptyline (Elavil), nortriptyline (Pamelor), imipramine (Tofranil), and doxepin (Sinequan).
  • Atypical antidepressants: These are newer types of antidepressants with different mechanisms of action than those of traditional antidepressants. They affect various combinations of serotonin, norepinephrine, dopamine, histamine, and other receptors in the brain. However, some can also increase appetite and reduce energy expenditure by affecting the histamine and muscarinic receptors. Examples of atypical antidepressants include mirtazapine (Remeron), trazodone (desyrel), bupropion (Wellbutrin), and nefazodone (Serzone).
  • Monoamine oxidase inhibitors (MAOIs) are another type of antidepressant rarely used today because of their severe side effects and interactions with other drugs and foods. They function by inhibiting an enzyme called monoamine oxidase, which breaks down serotonin, norepinephrine, and dopamine in the brain. However, they also affect histamine and muscarinic receptors, which can increase appetite and reduce energy expenditure. MAOIs include phenelzine (Nardil), tranylcypromine (Parnate), and isocarboxazid (Marplan).
  • Paroxetine (Paxi): This selective serotonin reuptake inhibitor (SSRI) is commonly used to treat anxiety disorders. Boosting the serotonin in the brain can help improve mood and well-being. SSRIs help to improve mood. However, paroxetine differs from other SSRIs in that it also affects muscarinic receptors, which can increase appetite and reduce energy expenditure. Paroxetine is also more likely to cause weight gain than other SSRIs because it has a shorter half-life, leaves the body faster, and generates more withdrawal symptoms, such as increased hunger and cravings.
  • Olanzapine (Zyprexa) is an atypical antipsychotic sometimes used to treat anxiety disorders. Antipsychotics affect dopamine and serotonin levels in the brain. However, olanzapine differs from other antipsychotics because it also affects histamine and muscarinic receptors, increases appetite, and reduces energy expenditure. Olanzapine is also more likely to cause weight gain than other antipsychotics because it has a higher affinity for these receptors and a longer half-life, which means that it stays in the body longer and has more lasting effects.


Anxiety measures can cause weight gain by affecting body functions, such as appetite, metabolism, hormones, and energy levels. However, not all anxiety measures cause weight gain, and the effects of medication on weight depend on several factors. You can prevent or manage weight gain from anxiety by following tips such as talking to your doctor, keeping track of your weight, eating a balanced diet, drinking water, avoiding alcohol and caffeine, exercising regularly, managing stress, and seeking professional help.

Weight gain from anxiety measures can be frustrating and challenging, but it is neither inevitable nor permanent. With adequate care and support, overcome this side effect, and enjoy the benefits of medication. Recall that your mental health is more important than your weight and that you are not alone in this journey.

Recommended for you: Weight Gain or Weight Loss: The Real Effects of Spironolactone

Leave a Reply

Your email address will not be published. Required fields are marked *