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Doctor insights on: Why Am I Gaining Weight On Levothyroxin

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Why am i gaining weight and blood sugar going up with levothyroxine?

Why am i gaining weight and blood sugar going up with levothyroxine?

LT4: It is possible that your appetite was depressed mor than your metabolism when you were hypothyroid. Now that your thyroid hormone is turned back on your appetite has increased. You will need to increase your level of exercise or cut back on the intake. ...Read more

Levothyroxine (Definition)

Of the hormone produced by one's own ...Read more


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I have been taking levothyroxine for years but I am still gaining weight in spite of diet and exercise. Why?

I have been taking levothyroxine for years but I am still gaining weight in spite of diet and exercise. Why?

Ineffective: You did not give us any specific such as your calorie count or the type of exercise you are doing. But usually in this situation the problem is the wrong foods and the wrong amount of foods combined with the wrong or ineffective exercise is the problem. ...Read more

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I'm 16 and have been taking levothyroxine 25 mcg for 8 years. I am always tired and I exercise constantly, but I'm still gaining weight. What can I do?

I'm 16 and have been taking levothyroxine 25 mcg for 8 years. I am always tired and I exercise constantly, but I'm still gaining weight. What can I do?

Watch diet: See your doctor to develop a diet and exercise plan that is best for you. Be honest about your concerns. There is a small chance your dosage may be adjusted. The most likely problem is diet. Reduce carbs, eat small meals more frequently, favor slow burn carbs over quickly absorbed carbs like sugars and starches. Cut out soda pop. Switch to water. Keep a log of all you eat and calculate the calories. ...Read more

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Gaining weight thyroid labs are tt3-1.17. Ft4 11.1(veryhigh) and tsh1.20. Dr. Says I'm hypo prescribes levothyroxine.I'm scared its serious w wrong meds?

Gaining weight thyroid labs are tt3-1.17. Ft4 11.1(veryhigh) and tsh1.20. Dr. Says I'm hypo prescribes levothyroxine.I'm scared its serious w wrong meds?

Thyroid : Thanks for resend. Still, not quite sure what is going on from info. Certainly the thyroid bloodwork should be repeated. If it still comes out the same you should have a nuc-med thyroid uptake and scan. Sometime the T4 is high if you take the med the day of the test, but not that high. The TSH being normal is a good sign. It is the most sensitive indicator of your thyroid health. See endo. ...Read more

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Tsh 12hypothyroid with weight loss. After taking levothyroxine 75 mcg I gained weight in normal bmi. All gaining weight with hypo but I lost why?

Tsh 12hypothyroid with weight loss. After taking levothyroxine 75 mcg I gained weight in normal bmi. All gaining weight with hypo but I lost why?

Paradoxical: Generally one gains weight with hypothyroidism and usually loses that weight gain with treatment with levothyroxine. As long as your TSH is in normal range and your appetite and food intake are normal for you, your current weight should be stable. ...Read more

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On 200mcg levothyroxine TSH is .4 still gaining lots of weight, very tired all the time.?

On 200mcg levothyroxine TSH is .4 still gaining lots of weight, very tired all the time.?

Not thyroid.: If your TSH is 0.4 you are on the right dose of levothyroxine. Continued weight gain and tiredness are likely due to something else. Some physicians might measure your free T3 (liothyronine) / free T4 and consider boosting your dose or supplementing you, but I think you have another issue. Regular exercise, sleep and a good diet. ...Read more

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Help.?. Dr. Prescribed 100mcg levothyroxine after my labs stated TSH 1.20(.35-4.94) and my freet4 11.1(.70-1.48 ng/dl) I've been gaining a lot of weight

Help.?. Dr. Prescribed 100mcg levothyroxine after my labs stated TSH 1.20(.35-4.94) and my freet4 11.1(.70-1.48 ng/dl) I've been gaining a lot of weight

???: Something doesn't make sense. Maybe the numbers are on wrong or the story is not clear. A normal TSH and elevated t4. And levothyeoxine was started. Re enter the question with more info. Have you been on thyroid meds? Do you have a diagnosis of hypothyroid. I do not recommend using thyroid meds to lose weight! ...Read more

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I am hypothyroid over 30 years. On 200mcg levothyroxine and TSH is .4 and T4 and ft3 are normal. Still gaining lots of weight and extremely exhausted?

I am hypothyroid over 30 years. On 200mcg levothyroxine and TSH is .4 and T4 and ft3 are normal. Still gaining lots of weight and extremely exhausted?

Check RT3: Check free T3 and reverse t3. Very important to check reverse t3. Ft3 should be in upper range and rt3 in lower range. If your ratio is off, you may need Armour Thyroid or t3, and synthroid (thyroxine) would be the wrong med for you. ...Read more

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Does overdosing on levothyroxine cause you to lose weight?

Does overdosing on levothyroxine cause you to lose weight?

Levothyroxin ovrdose: Yes it will, but it can also make you sick. It can cause palpitation, pounding heartbeat, tremors, chest pain, shortness of breath, confusion, leg cramps, diarrhea, and seizures
so take it in prescribed dose and under medical supervision. ...Read more

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If I double my dosage of levothyroxine, would I lose weight?

Not a good idea: A high dose of thyroid will increase your metabolic rate, but also your appetite. Will also raise your heart rate, give palpitations, stress your heart, make you hot all the time, anxious, and much more. In the medical field, this would be a clear misuse of the medication. ...Read more

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I take 50 mg of levothyroxine but my weight creeping up and up even with diet and excercise. Do I need to take more dose to higher my metabolism?

I take 50 mg of levothyroxine but my weight creeping up and up even with diet and excercise. Do I need to take more dose to higher my metabolism?

No: Your dose of thyroid medication should be adjusted based on your lab tests. Your weight may or may not be related to your thyroid level. To lose weight you will need to burn off more calories than you take in. Take a close look at your activity level and total calorie intake. A good start is to keep intake below 1500 calories ...Read more

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Should your levothyroxine dose also go down when your weight goes down?

Should your levothyroxine dose also go down when your weight goes down?

Tests: Not really. You medication dose is based upon you thyroid test results, not your weight. ...Read more

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I was over medicated on Levothyroxine, so I'm on half the dose. I lost 15lbs in weight, it's been 5 weeks and I have not gained any weight back.??

I was over medicated on Levothyroxine, so I'm on half the dose. I lost 15lbs in weight, it's been 5 weeks and I have not gained any weight back.??

Thyroid and wt loss: Thyroid harmones helps with metabolism. Low functioning thyroid can slow the metabolism Nd decrease weight and high dose of levothyroxine may have increased your thyroid function so you lost weight. It has been 5 weeks since you are on half the dose, get your TSH levels checked so you can be on proper dose needed for you. Are you actually trying to gain weight? ...Read more

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How long does it take for levothyroxine to start working? Espacially about weight gain :(

How long does it take for levothyroxine to start working? Espacially about weight gain :(

Hypothyroidism: Given its long half-life, we re-check your TSH about 6-8wks after you start Levothyroxine or change your dose. There are many symptoms to hypothyroidism (that's why you're taking Levothyroxine, right?), some of which take longer to resolve than others, but most within that 6-8wk period, if you're taking right dose for you. But weight won't magically melt off w/o exercising & eating health ...Read more

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Can you use levothyroxine for weight loss?

Can you use levothyroxine for weight loss?

Yes: You can boost metabolism but will cause fast heartbeat or irregular heartbeat so need supervision by a doctor(need to be prescribed by a doctor). ...Read more

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Does levothyroxine 25mcg cause weight loss?

Does levothyroxine 25mcg cause weight loss?

BRAND NAME: Thyroid hormone in the correct dose can normalize your thyroid levels and allow you to lose weight through diet and exercise. It does not cause weight loss all by itself, it just gets you back to normal metabolism. ...Read more

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I was diagnosed with hypothyroid about three months ago. My dr. Put me on levothyroxin, stopped most symptoms but can't lose weight. What can I do?

I was diagnosed with hypothyroid about three months ago. My dr. Put me on levothyroxin, stopped most symptoms but can't lose weight. What can I do?

Repeat labs: A repeat set of thyroid tests can help determine if the replacement hormone levels are appropriate. If the thyroid levels demonstrate suboptimal activity, the medication may still be adjusted. On the other hand, diet and exercise may be the solution if the thyroid function is normal. ...Read more

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What is a good diet and simple easy exercise for under active thyroid? I have levothyroxine tablets everyday weight only shifts a little then back

What is a good diet and simple easy exercise for under active thyroid?  I have levothyroxine tablets everyday weight only shifts a little then back

See below: Make sure your TSH levels are being monitored and you are on the proper amount of levothyroxine. Just eat a healthy diet with proportionate amounts of carbs and protein. Exercise at least 40 minutes 3-4 times per week. ...Read more

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How can I lose weight when I have no thyroid and have to take levothyroxine?

Diet and Thyroid: Once your thyroid level s normal on levothyroxine then the thyroid has nothing else to stand in the way of good dietary choices and exercise. Do not use the thyroid as an excuse for obesity! ...Read more

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Levothyroxine sodium for hypothyroidism. How long before the weight starts to come off?

Response will vary: Weight loss does not necessarily come when treated with thyroid replacement for hypothyroidism or for any other reason. The medication takes time to work and may require dose adjustment to get the correct dose. Weight loss may or may not accompany proper treatment. ...Read more

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I am takin Levothyroxine, Byetta 5mcg,&Metformin. I havnt been able to lose weight. Do these rxs cancel out each other???

I am takin Levothyroxine, Byetta 5mcg,&Metformin. I havnt been able to lose weight. Do these rxs cancel out each other???

Misinformed?: You are using medications to treat medical conditions. They are not designed to be weight loss medications and you cannot possibly rely on them to be such. Let them do their job and you do your job of eating less, eating more proteins than carbohydrates and getting daily exercise. ...Read more

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I'm taking levothyroxine sodium 125 mcg per day, what supplement can I take to lose weight? I eat healty & exer. I weight 194.I'm 47yr. Old,

I'm taking levothyroxine sodium 125 mcg per day, what supplement can I take to lose weight? I eat healty & exer. I weight 194.I'm 47yr. Old,

No easy answer: As long as your thyroid level is normal, this is not the reason for your weight problem. Although supplements are a multi-billion dollar industry, there are very few if any legitimate studies that show that they work. You should get a full examination to make sure there are no other reasons for your weight problem, after that it comes down to the basic reality of fewer calories in, more exercise. ...Read more

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I m 79 kg height 162 CM female. I'm taking levothyroxine.im physically active do cardio and 5km walk . I m losing my inches bt unable to lose weight?

Hypothyroid?: I am assuming you need the levothyroxine because you are hypothyroid, otherwise that is pretty dangerous. Being physically active alone does not mean you will lose weight. You have to also reduce the number of calories consumed. There are many calculators online as well as fitness apps that can help you out. But remember it isn't the weight that matters its how much of that is fat vs muscle. ...Read more

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Would adding T3 (liothyronine) to my levothyroxine help me lose weight?

Would adding T3 (liothyronine) to my levothyroxine help me lose weight?

T3 (liothyronine): In some cases adding T3 (liothyronine) does help with metabolism. Blood tests for thyroid can include T3 (liothyronine) t$ and TSH to help your doctor determine. ...Read more

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Is it safe to continue my dose of levothyroxine and begin taking Garcinia Cambogia to lose weight?

Is it safe to continue my dose of levothyroxine and begin taking Garcinia Cambogia to lose weight?

It is probably safe: It is probably safe but it may not be very effective. Garcinia cambogia is a tropical fruit, the Malabar tamarind. It is touted to block fat metabolism and may naturally raise serotonin making you feel less hungry. I doubt it has any special negative effects in those taking thyroid supplements. But it's actual weight loss results aren't impressive. I would probably save my money. Good wishes:) ...Read more

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How can I loose weight if I'm hypothyroid? Is there any medicine that's safe to take with levothyroxine for weight loss?

How can I loose weight if I'm hypothyroid? Is there any medicine that's safe to take with levothyroxine for weight loss?

Weight and thyroid: Hi. Assuming your hypothyroidism is treated, it's not the cause or a factor in your overweight/obesity. The 4 prescription drugs that are FDA-approved for chronic treatment for weight loss can all be used with treated hypothyroidism: Qsymia, Belviq, (lorcaserin) Contrive, and (when it becomes available), Saxenda. Eat healthily and exercise regularly. Talk with a doctor to see if weight loss drugs are indicated ...Read more

Dr. Martin Fried
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Gaining Weight (Definition)

An increase in a person's weight over ...Read more