How-The-Liver-Impacts-Thyroid-Function

How The Liver Impacts Thyroid Function

Aug 01, 2025Kyah Seary

The body is designed to function like an orchestra, with each element playing its own essential part to keep everything running smoothly. While we often think of our body parts as separate entities, they are far more connected than we realise. A perfect example of this is the relationship between the thyroid gland and the liver. When one is underperforming, it can throw the other off balance.

What does the thyroid gland do?

The thyroid gland, a small butterfly-shaped organ at the base of the neck, plays a vital role in maintaining the body’s overall balance. It produces hormones that regulate metabolism, which affects how your body uses energy. These hormones also influence heart rate, digestion, temperature regulation, sleep patterns, and even mood stability. When the thyroid is out of sync, you may feel sluggish, anxious, or have trouble with weight and concentration.

What does the liver do?

In contrast to the small thyroid, the liver is the body’s largest internal organ. It’s responsible for breaking down and metabolising nutrients from food, producing bile to aid in digestion, and filtering out toxins and harmful substances from the blood. It also plays a role in hormone regulation. This means that if the liver is overwhelmed or sluggish, it can impact how effectively your thyroid hormones function in the body.

How does the liver impact thyroid function?

The liver plays a role in managing thyroid hormone levels while these hormones impact the liver’s ability to process fats and cholesterol. They need each other for the body to function at its best.

Thyroid and liver health are closely linked, and problems in one can affect the other. An underactive thyroid (hypothyroidism) can lead to fat buildup in the liver, known as non-alcoholic fatty liver disease, which can sometimes become more serious. An overactive thyroid (hyperthyroidism) can also affect the liver by speeding up metabolism and changing liver enzyme levels, which may cause liver damage. Autoimmune thyroid diseases like Hashimoto’s and Graves’ disease can also harm the liver in different ways. On the flip side, liver diseases like hepatitis or cirrhosis can interfere with how thyroid hormones are processed in the body. This can lead to hormone imbalances and make thyroid problems worse. A damaged liver may also struggle to remove toxins, which can add to thyroid issues.

Supporting both organs through a healthy lifestyle, balanced nutrition, and proper medical care can go a long way in keeping your body in harmony

Symptoms of thyroid issues

With an underactive thyroid you experience dry skin, hair loss, constipation, always feeling cold and irregular periods. With an overactive thyroid, you’ll feel anxious, have an aversion to the heat, suffer from diarrhea, and a fast heart rate.

Overall symptoms for either include being more tired, changes in appetite and abdominal pain.

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