Treatment FAQ

how much weight do you gain during hyperthyroid treatment

by Austen Hamill Sr. Published 2 years ago Updated 1 year ago

Average weight gain was about 11.8 lbs for patients who were treated with medication, 12.3 lbs for those who had RAI treatment without developing hypothyroidism, and 15.6 lbs for those who had RAI treatment and developed hypothyroidism.

Full Answer

Can hyperthyroidism cause weight gain after treatment?

The key words are “after treatment.” Yes, hyperthyroidism patients lose weight before being treated but afterwards, when treatment is successfully administered, it is noted that a significant amount of patients gain weight. Why? To put it plainly, when left untreated, hyperthyroidism pushes your metabolism out of whack.

How long does it take for thyroid medication to make you gain weight?

A steady level of weight gain appears to happen in the first six months of treatment before tapering off, but some patients experienced this for more than three years. Those with Graves’ disease seemed to gain more weight than those with toxic nodular hyperthyroidism.

What is the correct weight gain strategy for hyperthyroidism?

WEIGHT GAIN STRATEGY #4: Correct any malabsorption problems. Malabsorption is common with hyperthyroidism (1)(2), as the increase in metabolism itself can affect the absorption of nutrients, although there can be other factors which cause problems with absorption.

How much weight do you gain with hyperthyroidism?

In all, the study looked at 1,373 patients with hyperthyroidism, ages 18 to 90. During treatment, the men gained about 17.6 pounds on average, while the women gained an average of a little over 12 pounds.

Will I gain weight once I start taking thyroid medication?

In most cases, levothyroxine causes some weight loss. According to the American Thyroid Association, when this medication is started, you may lose up to 10% of your weight. This weight is mainly water weight, since being hypothyroid makes you retain water. Levothyroxine is a medication to treat hypothyroidism.

Can you lose weight after treating hyperthyroidism?

Once hypothyroidism has been treated and thyroid hormone levels have returned to the normal range of thyroid hormone, the ability to gain or lose weight is the same as in individuals who do not have thyroid problems.

Can hyperthyroidism cause rapid weight gain?

Since hyperthyroidism also increases appetite, some patients may not lose weight, and some may actually gain weight, depending on how much they increase their caloric intake.

How can I avoid weight gain with hyperthyroidism?

If you're taking in a lot more calories, you can gain weight even if your body is burning more energy. Make sure you eat healthy foods, get regular exercise, and work with a doctor on a nutrition plan. These steps can all help combat weight gain from an increased appetite.

Does everyone gain weight on methimazole?

During the first six months, experiencing consistent weight gain is most common, followed by a drop-off during treatment for their thyroid disease. However, most patients experienced some degree of weight change for more than 24 months after therapy.

Can you be overweight with hyperthyroidism?

Overweight or obesity was observed in 76.5% and 58.8% of hypothyroid and hyperthyroid patients, respectively (p=0.23).

Is it hard to lose weight on Carbimazole?

Once you start taking carbimazole, you will stop losing weight as your hormone levels stabilise. Once you are on the right dose of carbimazole, and your thyroid hormone levels have returned to normal, the treatment will no longer affect your weight.

Can you lose weight with no thyroid?

The thyroid gland produces hormones that regulate your metabolism, so its removal can make it difficult to lose weight. You may actually gain weight as a side effect of the procedure. You should speak to your doctor if you wish to lose weight following a thyroidectomy.

Who wrote the book "The Weight of the Thyroid"?

Written by Kathleen Doheny. With Kristien Boelaert, MD, PhD, and Reshmi Srinath, MD. After successful treatment for her overactive thyroid (hyperthyroidism), the patient (who we will call June), not only gained all excess the weight she had lost while her thyroid gland was in overdrive, but the weight continued to creep up.

What is the thyroid clinic database?

The researchers turned to the Thyroid Clinic Database at the University Hospitals Birmingham National Health Service Foundation Trust to gather data on all adult patients with hyperthyroidism treated either with antithyroid drugs, radioiodine (131-I), or both. Information was collected for patients treated between 2000 and 2014 with three years of followup. 1 None of the patients had a thyroidectomy—surgical removeal of the thyroid—which is another treatment option.

What is a thyroid storm?

Thyroid storm is a life-threatening condition in which body temperature, heart rate, and blood pressure often rise to dangerous levels. These symptoms arose in “June,” landing her in the intensive care unit, Dr. Boelaert says, and required urgent medical attention. Just like this patient, many people are tempted to stop taking their antithyroid ...

Is hyperthyroidism more likely to cause obesity?

However, after treatment, the patients with hyperthyroidism were more likely than the comparison group to reach a level of obesity. In effect, men were 1.7 times more likely and women, 1.3 times more likely, to gain enough weight to be considered in the obese range. 1. When compared with drugs alone, treatment that included RAI was linked ...

Can you eat after antithyroid treatment?

After the antithyroid treatment begins, at least some people may continue to eat the same larger amounts that they have grown accustomed to, and this may contribute to the weight gain, she says. Do appetite signals return to normal once treatment begin? "We don't know, but we hope to study this," Dr. Boelaert says.

Is thyroid disease benign?

"Having an overactive thyroid is not a benign disease," she tells her patients.

Does hyperthyroidism cause weight gain?

Following treatment for hyperthyroidism, patients will observe a steady weight gain despite not changes in their eating or exercise. First, the weight will approach their normal level but then many continue experience further weight gain, reaching overweight or even obesity. As such, Dr. Boelaert set out to evaluate out just how severe ...

Hyperthyroidism Weight Gain Statistics

For their study, Dr. Boelaert and colleagues used the Thyroid Clinic Database at the University Hospitals Birmingham National Health Service Foundation Trust. They examined data on all adults with hyperthyroidism who were treated with either antithyroid drugs; radioiodine (131-I), also called radioactive iodine (RAI); or both between 2000 and 2014.

What Causes Excess Weight Gain After Hyperthyroidism Treatment?

It’s not completely clear why individuals who are treated with antithyroid drugs or radioactive iodine to reverse their hyperthyroidism show a tendency to gain back the lost weight plus more. “It appears something in the disease process or perhaps from the treatment makes them end up heavier,” Dr. Boelaert says.

Hyperthyroidism Weight Gain and Heart Disease

Dr. Boelaert says she worries about the adverse effects that are associated with overweight, which compound risks that are already experienced by people with thyroid disorders.

How to Safely Address Weight Gain from Hyperthyroidism Treatment

If you are being treated for an overactive thyroid, these strategies can help you minimize excess weight gain without putting your health at risk:

How does thyroid affect weight?

How thyroid function can affect your weight. Thyroid hormone helps regulate your metabolism. Your metabolism is how much energy your body uses and at what rate. This means that thyroid hormone also affects your basal metabolic rate. This is how much energy your body uses to keep functioning while it’s at rest.

What are the symptoms of hyperthyroidism?

See a doctor if you develop any of these symptoms. If you’re gaining weight and have symptoms of hyperthyroidism, such as nervousness, increased sweating, and trouble sleeping , it’s still a good idea to see your doctor. They can help you find the right diagnosis and treatment.

What is the name of the condition where your body makes more thyroid hormone than it needs?

Hyperthyroidism (overactive thyroid) is a condition where your body makes more thyroid hormone than it needs. The condition affects about 1 percent of people in the United States and is more common in women. Your thyroid is a butterfly-shaped gland in your neck. The thyroid hormones it makes help control how your body uses energy.

How do you know if you have thyroid problems?

Weight gain alone is generally not a sign of a thyroid problem. But weight gain alongside the following symptoms can indicate hypothyroidism: 1 fatigue 2 achiness 3 depression 4 dry skin 5 constipation

What is the most common type of thyroiditis?

The most common type of thyroiditis is Hashimoto disease. It’s also the most common cause of hypothyroidism. In some rare cases, the immune response to Graves disease — the most common type of hyperthyroidism — can continue long enough to attack the thyroid and lead to inflammation. Therefore, it can cause Hashimoto disease, ...

Does thyroid cause weight gain?

However, in some cases, hyperthyroidism can actually lead to weight gain.

Is weight gain a sign of thyroid problems?

Talk to your doctor about finding the right course of treatment for you. Weight gain alone is generally not a sign of a thyroid problem.

What is the best treatment for hyperthyroidism?

Another potential treatment for hyperthyroidism is the use of Beta blockers. These medications really only act to reduce the effects of circulating thyroid hormones by reducing T4 to T3 conversion (6) and blocking the receptor effects of thyroid hormone.

What causes hyperthyroidism?

What you may not realize is that most cases of hyperthyroidism are caused by an autoimmune disease. It's also even more interesting when you consider that most cases of hypothyroidism (Hashimoto's thyroiditis) are also caused by autoimmune disease!

Why do I need thyroid hormone replacement?

Because your body can no longer produce thyroid hormone on its own - you now need to supplement with thyroid hormone replacement. Patients who have had their thyroid removed or who have undergone RAI almost ALWAYS gain weight (usually at least 20 pounds) but sometimes even more.

What does it mean when your body isn't producing enough thyroid hormone?

This is the exact opposite of the condition hypothyroidism which means your body isn't producing ENOUGH thyroid hormone. Now things can obviously get more complex than this - for instance how your body is using the thyroid hormone floating around, but let's ignore that topic for a second.

How to improve antibody levels?

Address your diet: The first thing you will want to do is clean up your diet. That may include adopting a strict diet such as the paleo diet, the autoimmune paleo diet or a gluten-free diet. Believe it or not, making these simple changes can dramatically improve your symptoms and may improve your antibody levels.

What supplements can help with thyroid?

You can find a list of supplements below that can improve thyroid function and improve immune function in those with hyperthyroidism: Zinc: Zinc can improve T4 to T3 conversion while balancing immune function. Take up to 60mg per day. Liquid Vitamin D3: Vitamin D3 can improve immune function.

Can methimazole cause weight gain?

That means it's easy to either over treat (causing hypothyroidism and weight gain) or undertreat (leaving you with symptoms of hyperthyroidism). Because of these issues, methimazole generally isn't used long term which leads to thyroidectomy (thyroid removal) or RAI (ablation of the thyroid gland).

How many people with a normal BMI are overweight?

Lead by Dr Kristien Boelart of the University of Birmingham it was discovered that: 44% of patients with a normal BMI at the beginning of the research became overweight or obese. Men gained 17.6 lbs during treatment and were 1.7 times more likely than those without an overactive thyroid to get into the obese range.

Can hyperthyroidism cause weight gain?

We also know that people who have had hyperthyroidism do become used to eating what they like and it’s possible that they continue to eat at their pre-treatment levels which results in weight gain due to them now having a normal rather than fast metabolic rate .

Can you lose weight with hyperthyroidism?

When you have hyperthyroidism it’s likely that you will lose weight, in fact it’s possible that this very weight loss is what prompts you to visit your doctor in the first place. The unusual feature is that this weight loss occurs despite an increase in appetite.

Is hyperthyroidism a benign disease?

Stopping treatment is NOT the answer. Hyperthyroidism is not a benign disease and left untreated it can lead to other serious health problems that involve. the heart – please see this blog post.

1. How does the thyroid work?

It makes hormones that are carried through the blood to every tissue in your body. Thyroxine, also known as T4, is the main one. Your pituitary gland tells your thyroid how much thyroid hormone you need.

2. How does the pituitary determine that?

Its job is to monitor your thyroid hormone levels. When the pituitary senses levels are dropping, it produces TSH (thyroid stimulating hormone), which signals your thyroid to step up production. If it senses hormone levels are too high, it signals the thyroid to slow down.

4. People often blame the thyroid when they put on weight. Is it usually to blame?

That’s one of things that our society overplays. In truth, the weight gain associated with untreated hypothyroidism is generally just a few pounds — we’re not talking 50 or 60. Your thyroid doesn’t make you crave food; it’s more of a slowing of metabolism that makes it harder to burn calories.

5. What are the most common thyroid diseases?

Hashimoto’s disease is the most common form of underactive thyroid disease. It’s an autoimmune disease in which the body develops an antibody that essentially scars the thyroid, making it underactive.

6. How are thyroid problems diagnosed?

Typically, it’s done with a blood test for the hormones T4 and TSH, as well as another made by the thyroid called T3.

7. If there is a growth, what happens next?

Nodules under a centimeter in size are not likely to be concerning. Larger ones we pay more attention to. Their appearance on an ultrasound can tell us if they are solid, filled with fluid or irregular in shape. If a nodule is concerning enough, a fine needle biopsy to sample the tissue can reveal whether it is cancerous or not.

8. How do you treat underactive and overactive thyroids?

Levothyroxine is the mainstay treatment for underactive thyroid. It’s a pill that replaces the thyroid hormone the body naturally wants. We monitor patients’ blood levels regularly to make sure we have the right dose.

How to help hyperthyroidism?

Most people with hyperthyroid conditions try to address their weight loss issues by eating as many calories as they can. Frequently what they’ll do is try to load up on carbohydrates. Ideally what you want to do is eat nutrient dense foods.

What is weight gain strategy #4?

WEIGHT GAIN STRATEGY #4: Correct any malabsorption problems. Malabsorption is common with hyperthyroidism (1) (2), as the increase in metabolism itself can affect the absorption of nutrients, although there can be other factors which cause problems with absorption. For example, many people with Graves’ Disease have an increase in intestinal ...

Can thyroid hormone cause weight loss?

Since the high thyroid hormone levels are usually responsible for the weight loss in hyperthyroid conditions you of course want to do what is necessary to normalize these levels. Most people with hyperthyroidism have Graves’ Disease, which is an autoimmune thyroid condition where TSH receptor antibodies stimulate or bind to the TSH receptors, ...

Can you gain weight with hyperthyroidism?

However, eating nutrient dense foods and doing some light weightlifting can also help people to gain weight.

Does bugleweed help with weight loss?

Bugleweed and L-carnitine are natural options, as they both can inhibit thyroid hormone production, and thus stop the weight loss from occurring. Sometimes people will continue to lose weight even after the thyroid hormone levels are normal, and when this is the case they will need to look into the other “weight gain strategies” I listed here.

Can you lose weight with Graves disease?

While many people have problems losing weight, most people with hyperthyroidism and Graves’ Disease have the opposite problem. Due to the increased metabolism caused by the hyperthyroid condition, most people with hyperthyroidism lose a good amount of weight, and many of these people find it challenging to stop the weight loss.

Can you gain weight while on antithyroid medication?

In fact, some people don’t want to undergo any treatment until they drop a certain number of pounds. On the other hand, some people with hyperthyroid conditions begin to gain weight when taking antithyroid medication. But some people struggle to gain weight even while on the medication, and so let’s go ahead and discuss some ...

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