Antidepressants are widely used to treat depression and other mental health conditions. For many people, these medicines are life-changing and help them feel better, think more clearly, and manage daily life.
However, a new study suggests that people who take antidepressants may be more likely to gain weight over time, especially if they use them for a long period.
The study was led by researchers at the Hospital del Mar Research Institute and was published in the journal Frontiers in Psychiatry. It followed more than 3,000 adults over six years to understand how antidepressant use might affect body weight.
Depression is a common condition that affects millions of people around the world. According to global estimates, about 280 million people live with depression. At the same time, obesity is also a major health issue, affecting around 650 million people worldwide.
These two conditions are closely linked. People with depression may be more likely to gain weight, and people with obesity may have a higher risk of depression. This makes it important to understand how antidepressant medicines may influence weight.
In this study, the researchers followed 3,127 adults with an average age of 55. During the six-year period, about 16.4 percent of the participants reported using antidepressants at some point. Some people took them continuously, some started during the study, and others stopped after a period of use.
All participants gained a small amount of weight over time, which is normal as people age. On average, people gained about 0.5 kilograms. However, those who used antidepressants gained more weight than those who never used them. The greatest weight gain was seen in people who took antidepressants for the entire six years.
The results showed that people who used antidepressants continuously had about double the risk of developing obesity compared to those who did not use these medicines. Even people who stopped taking antidepressants still gained more weight than those who had never taken them.
Dr. Camille Lassale, one of the researchers involved in the study, explained that the link between antidepressants and weight gain remained strong even after considering many other factors.
These factors included age, sex, lifestyle habits, income level, and whether the person had depression. This suggests that the medicines themselves may play a role in weight changes.
The study also found that certain groups were more likely to gain weight while taking antidepressants. These included women, older adults, and people with less healthy lifestyles. This means that individual factors may influence how the body responds to these medicines.
Not all antidepressants have the same effect. Some types are more strongly linked to weight gain than others. For example, medicines such as mirtazapine and paroxetine are known to be associated with larger increases in body weight. Other antidepressants may have a smaller effect or no effect at all.
Doctors stress that antidepressants are still very important for treating mental health conditions. For many patients, the benefits of these medicines are much greater than the risks. However, it is also important to be aware of possible side effects, including weight gain.
Dr. Gabriela Lugon, another researcher in the study, pointed out that doctors should not ignore this issue. She explained that while antidepressants help improve mental health, their impact on physical health should also be considered. Monitoring weight and overall health during treatment can help reduce risks.
Weight gain is one of the main reasons why some people stop taking antidepressants. This can be dangerous, as stopping treatment suddenly may cause symptoms to return or worsen.
Because of this, doctors are encouraged to work closely with patients to find the best treatment plan. This may include choosing a different type of medicine or adding lifestyle support such as healthy eating and regular exercise.
The study also highlights the need for better strategies to manage both mental health and physical health at the same time. Researchers plan to continue studying how different antidepressants affect weight and how patients can stay healthy while receiving treatment.
Overall, this research provides important new information about a common group of medicines. It shows that while antidepressants can greatly improve mental health, they may also have effects on body weight that should not be ignored.
By staying informed and working closely with healthcare providers, patients can make the best choices for both their mental and physical well-being.
If you care about depression, please read studies about how dairy foods may influence depression risk, and B vitamins could help prevent depression and anxiety.
For more information about mental health, please see recent studies that ultra-processed foods may make you feel depressed, and extra-virgin olive oil could reduce depression symptoms.
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