Related Questions

Could rapid weight gain over a short period of time be linked to an underactive thyroid?

It's possible. There are many potential causes of rapid weight gain. Thyroid problems, either too little or too much thyroid hormone, could be the cause, but most people with weight gain turn out to have normal thyroid levels. A doctor might ask a lot of questions about diet, exercise, and other symptoms, then consider ordering labs to see if there is a specific cause such as low (or high) thyroid levels.
Very unlikely. It is hard to say why you've experienced a large weight gain over a short period of time without knowing you, but this isn't typical of hypothyroidism. Even if you are hypothyroid the cause of a rapid weight gain should be further investigated.

Can the underactive thyroid cause weight loss or only weight gain?

Hypothyroidism. Hypothyroidism is usually associated with weight gain more than weight loss.
Weight Gain. Hypothyroidism (low) is associated with gaining weight, because your metabolism is too slow and sluggish. The most common cause is autoimmune, called Hashimoto's. Other symptoms include fatigue/lethargy, muscle aches, menstrual irregularity, constipation, feeling cold, dry skin, depression, and coarse hair. You may have a goiter/enlarged thyroid. Blood tests can show anemia, high cholesterol.
Not typical. It would be very atypical to loss weight from untreated hypothyroidism, unless your appetite were significantly compromised.

Do people tend to lose or gain weight with an underactive thyroid?

Weight. Children actually may lose weight or "fail to thrive". Adults can gain weight if thyroid levels are low.

Fatigue and weight gain. Blood work shows mild hypothyroidism (TSH slightly over 5) but no cold intolerance. Are my symptoms still related to thyroid?

Likely. The information you provided is consistent with thyroid deficiency and you should consult your doctor for replacement therapy. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex, if you have sex. Get HPV vaccine.

Is it possible to lose weight with an underactive thyroid?

Hypothyroidism. First, your hypothyroidism must be treated. Then change your lifestyle to a healthier one. You don't need a drastic diet. Make small changes. Eat the right portions, eat 3-5 small meals a day, cut back on carbs and sugars, increase lean protein/veggie/fruit/water intake, and start doing some cardiovascular exercise. Continue to monitor your tsh, t3, (liothyronine) and T4 levels as well.

What are the best ways to lose weight with an underactive thyroid?

Hypothyroidism. First, your hypothyroidism must be treated. Then change your lifestyle to a healthier one. You don't need a drastic diet. Make small changes. Eat the right portions, eat 3-5 small meals a day, cut back on carbs and sugars, increase lean protein/veggie/fruit/water intake, and start doing some cardiovascular exercise. Continue to monitor your tsh, t3, (liothyronine) and T4 levels as well.

Trying to lose weight with an underactive thyroid. What should I do?

Diet and exercise. A healthy diet and exercise and taking your thyroid hormone replacement as recommended by your doctor. Normal thyroid hormone levels will help you to no continue to gain weight by stimulating your metabolism to normal rate, but without diet and exercise you will not lose the excessive weight.

How can I have an underactive thyroid and still be losing weight constantly?

Many possible reason. Weight loss can be caused by many things and you need further evaluation. Also if you are receiving treatment for your under active thyroid the dose may need to be adjusted.