Weight gain can often be attributed to a lack of exercise and poor diet choices. However, in some cases, weight gain can be unintentional, confusing and frustrating.

It’s important to understand the causes of unintended weight gain so that we can properly address the underlying issues and take appropriate action to manage our weight.

Thyroid imbalances

The thyroid gland plays a role in regulating our weight since it regulates metabolism. Hypothyroidism, or an underactive thyroid, can lead to unintended weight gain.

This condition results in a slower metabolic rate, which means the body will burn fewer calories at rest. This slower metabolic rate can cause weight gain, even if you’re eating a healthy diet and exercising. Symptoms of hypothyroidism include fatigue, weight gain, hair loss and dry skin.

If you suspect you may have a thyroid imbalance, speak with your doctor.

Medications

Many medications can cause weight gain as a side effect. Common culprits include antidepressants, anti-anxiety medications, hormonal birth control, steroids, and antipsychotics.

These medications can slow down your metabolism and increase your appetite, causing weight gain. If you notice weight gain after starting a new medication, speak with your doctor. They may be able to switch you to a different medication, switch your dosage or suggest another treatment option.

Stress and cortisol levels

When we’re stressed, our bodies produce a hormone called cortisol. High levels of cortisol in the body can lead to weight gain, particularly in the abdominal area.

This is because cortisol encourages the body to store fat, rather than burning it for energy. Additionally, when we’re stressed, we may turn to comfort foods or overeat, leading to weight gain. If you’re struggling with stress-induced weight gain, try stress-reducing techniques like meditation, massage or yoga.

Insomnia and sleep deprivation

Lack of sleep can impact your eating habits. When you’re sleep-deprived, your body produces more ghrelin (the hunger hormone) and less leptin (the hormone that suppresses hunger). This hormonal imbalance can lead to overeating and weight gain.

Additionally, when we’re tired, we may turn to sugary or caffeinated beverages to help us stay awake, which can also lead to weight gain. If you’re struggling with insomnia or sleep deprivation, seek out the advice of your doctor.

Menopause

Menopause is a natural phase of life where women experience a decrease in estrogen levels. This decrease in estrogen can lead to weight gain, especially around the belly area. This weight gain can be frustrating for many women.

Maintaining a healthy diet and exercise routine can help manage weight gain during menopause. Additionally, your doctor may suggest hormone replacement therapy (HRT) to help manage symptoms.

Cushing’s syndrome

Cushing’s syndrome is a rare hormonal disorder that causes high levels of the hormone cortisol in the body. This condition can cause weight gain, particularly in the face, neck, and midsection.

Other symptoms of Cushing’s syndrome include round or moon-shaped face, acne, purple stretch marks, and fatigue. If you suspect you may have Cushing’s syndrome, speak with a doctor.

Polycystic Ovary Syndrome (PCOS)

Polycystic Ovary Syndrome (PCOS) is a condition that affects women and is caused by an imbalance of hormones.

Women with PCOS often have high levels of androgens (male hormones) in their bodies, which can lead to weight gain, among other symptoms like infertility, acne, and irregular periods. Diet and exercise can help manage the symptoms of PCOS.

Chronic stress

Chronic stress can cause weight gain by increasing your appetite and encouraging you to eat more unhealthy foods. Additionally, chronic high levels of cortisol, also caused by chronic stress, can lead to weight gain, especially in the abdominal area.

If you’re struggling with chronic stress, consider seeking the help of a therapist or counselor.

Depression

Depression can lead to unintended weight gain due to a change in appetite, as well as a lack of motivation to exercise or maintain a healthy diet. Additionally, some antidepressant medication can cause weight gain.

If you’re struggling with depression-induced weight gain, speak with your doctor. They may be able to provide you with additional resources and support to help manage both your depression and your weight.

Genetic predisposition

While genetics may not be the sole reason for weight gain, they can certainly play a role. Some people are predisposed to gaining weight more easily than others, even if they eat a healthy diet and exercise regularly.

Understanding your genetic tendencies can help you work with a doctor or nutritionist to tailor a weight management plan that works best for you.

Conclusion

While some causes of unintended weight gain may be out of our control, many can be managed with the appropriate lifestyle choices, medical treatment, and support.

Understanding the causes of weight gain is the first step to taking appropriate action to manage your weight and optimize your health. If you’re struggling with unintended weight gain, speak with a healthcare professional to help identify the underlying causes and develop a personalized plan for weight management.