Is Your Thyroid Making You Gain Weight?

Is Your Thyroid Making You Gain Weight Quickly?

A person’s diet can have an impact on the symptoms of hyperthyroidism. Some foods can improve the condition, while others can make symptoms worse or interfere with medications.



Hyperthyroidism is the overproduction of thyroid hormones (T3 and T4) by the thyroid gland. One of the most common causes of hyperthyroidism is Grave’s Disease - named after the physician who first described it. Antibodies are created by the immune system which attaches to the receptors of the thyroid glandular tissue and stimulates them to produce excess hormone

Hyperthyroidism can actually lead to weight gain

Excess thyroid hormone is associated with a high basal metabolic weight. This means that your body burns more energy while it’s at rest, so weight loss is a common symptom of hyperthyroidism.

This also means that not producing enough thyroid hormone is usually associated with a low basal metabolic rate. Therefore, hypothyroidism (underactive thyroid) can cause weight gain. Your body isn’t burning as much energy, which can lead to a calorie surplus.
The symptoms of an overactive thyroid include unintentional weight loss, anxiety, sweating, frequent bowel movements, difficulty sleeping, and muscle weakness.

Hyperthyroidism is far more common in women than in men.

The following nutrients and chemicals are among those who can affect hyperthyroidism:

Iodine, which the thyroid uses to supply hormones. an excessive amount of iodine within the diet can increase the assembly of thyroid hormones.
Calcium and vitamin D are vital because hyperthyroidism can cause problems with bone mineral density.


Foods and drinks containing caffeine can worsen the symptoms of hyperthyroidism. People with hypothyroidism have plenty of healthy food options, including eggs, meat, fish, most fruits and vegetables.

Foods to eat by News Medical Today 

The following foods can have benefits for people with an overactive thyroid:
Low iodine foods

If a person is planning to receive radioactive iodine treatment for hyperthyroidism, their doctor may ask them to follow a low iodine diet.

Foods and drinks that are low in iodine include:
  • non-iodized salt
  • egg whites
  • fresh or frozen vegetables
  • tea and black coffee
  • herbs and spices
  • vegetable oils
  • sugar, jam, jelly, and honey
  • unsalted nuts and nut butter
  • soda and lemonade
  • beer and wine
  • moderate portions of beef, chicken, turkey, veal, and lamb
  • fruit and fruit juices

Hyperthyroidism vs Hypothyroidism


The most common difference between the two diseases relates to hormone levels. Hypothyroidism leads to a decrease in hormones. Hyperthyroidism leads to an increase in hormone production.

In the United States, hypothyroidism is more common than hyperthyroidism. However, it’s not uncommon to have an overactive thyroid and then an underactive thyroid, or vice versa.

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