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Doctor insights on: Hyperthyroid And Weight Gain

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How does hyperthyroid cause weight gain?

How does hyperthyroid cause weight gain?

Eat too much.: Even if you're burning off excessive amounts of calories, many people can eat more than they burn off and they will gain weight. Hyperthyroidism stimulates food intake, and some people really overdo it. ...Read more

Dr. Susan Wingo
541 doctors shared insights

Hyperthyroidism (Definition)

Hypothyroidism is a medical condition that lowers the level of thyroid hormone to a point where the patient has a marked decrease in overall health. Often the patient does not notice the loss of thyroid hormone for several weeks or more. Once diagnosed with low thyroid hormone levels, the patient will be prescribed with thyroid hormone to a point where the thyroid levels are normal and ...Read more


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Hyperthyroidism and weight gain, can a low TSH level cause weight gain? And how would menopause effect TSH level?

Hyperthyroidism and weight gain, can a low TSH level cause weight gain? And how would menopause effect TSH level?

No: Rarely hyperthyroidism manifested by a low TSH and elevated thyroid hormones can cause increased hunger leading to weight gain. Most hyperthyroids lose (muscle) weight. Menopause has no effect on TSH levels, but as we age hypothyroidism with increased TSH becomes more likely. 20% of women on medicare have elevated TSH and have frank or subclinical hypothyroidism. ...Read more

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Can you have hyperthyroidism and weight gain? Tsh <0.01, ft3 & ft4 very high. Rapid heartrate, but I am very overweight, and cannot lose weight.

Can you have hyperthyroidism and weight gain? Tsh <0.01, ft3 & ft4 very high. Rapid heartrate, but I am very overweight, and cannot lose weight.

Yes: Hyperthyroidism increases your metabolism. Most people will lose weight with hyperthyroidism but some will be able to overeat to compensate and will gain weight. Your level is quite high and need to be treated. Please see your doc. ...Read more

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Can stopping hyperthyroidism medicine cause weight gain?

Not normally: Hyperthyroidism usually causes weight loss, treating it would cause weight gain.Therefor stopping treatment for hyper thyroidism would likley cause weight loss not gain. ...Read more

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Does medication for low TSH hyperthyroidism cause you to gain weight?

Does medication for low TSH hyperthyroidism cause you to gain weight?

Thyroid and weight: As the medication (eg. Methimazole) normalizes your thyroid levels, your metabolic rate will return to normal. Your appetite, however, may still be in hyper-mode. Weight gain is common, but if you take care with what you eat you can minimize this. ...Read more

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Besides hormone imbalance or hyperthyroidism or diet is there any orher condition that cancause rapid weight gain?

Besides hormone imbalance or hyperthyroidism or diet is there any orher condition that cancause rapid weight gain?

Weight Gain: You lose weight in hyperthyroidism even with voracious appetite. On the other hand, you gain weight if your thyroid is under active . Do you have any swelling of leg or abdomen? Do you take too much salt? See your PCP for blood tests. ...Read more

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Will I have a heart attack from heart palpitations due to hyperthyroidism? And will I gain weight when I start taking the medicine to treat it?

Will I have a heart attack from heart palpitations due to hyperthyroidism? And will I gain weight when I start taking the medicine to treat it?

Depends: On your underlying cardiac status...If ur young and have no blockages in ur heart, unlikely heart attack- but if ur older and have blockages, maybe, bc too much thyroid hormone makes ur heart work harder than necessary- if heart doesn't get enuf blood/oxygen to do that work, that's a heart attack. Ur metabolism is higher bc of the extra thyroid horm, so if u cont to eat the way u r, u might gain. ...Read more

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I went to the doctor for weight gain n fatigue.My tests show freet4 11.1 and TSH 1.20..Im so confused because it looks like hyperthyroid?

I went to the doctor for weight gain n fatigue.My tests show freet4 11.1 and TSH 1.20..Im so confused because it looks like hyperthyroid?

Difficult to say: Tsh has a longer half life than ft4, so if the increase in T4 is more acute, then you might not see a change in TSH yet. It would be important to repeat the lab tests to confirm them. This can be caused from subclinical thyroiditis, postpartum thyroiditis, hashitoxicosis, graves disease, a toxic nodule(s) or certain medications. ...Read more

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Dr. Michael Rothman
1,333 doctors shared insights

Weight Gain (Definition)

Weight gain is an increase in body weight. This can be a result of increases to muscle mass, increases in body fat, or increases in body fluids like water. Occasionally, weight gain can be a symptom of ...Read more


Dr. Susan Wingo
513 doctors shared insights

Overactive Thyroid (Definition)

Hyperthyroidism, often called "overactive thyroid," is a condition where the thyroid secretes too much of the thyroid hormones. Common symptoms include heat intolerance, increased appetite, ...Read more