can thyroid issues cause weight loss?
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Hyperthyroidism (overactive thyroid) occurs when your thyroid gland produces too much of the hormone thyroxine. Hyperthyroidism can accelerate your body's metabolism, causing unintentional weight loss and a rapid or irregular heartbeat.
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According to Dr. Kitahara, if someone has low thyroid function, their TSH is high, and the thyroid hormones known as T3 and T4 are low—and weight gain often occurs. If someone has an overactive thyroid or hyperthyroidism, TSH is usually low, the T3 and T4 are high, and weight loss occurs.
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Patients with hyperthyroidism commonly experience weight gain after thyroidectomy. This occurs due to the reduction in circulating thyroid hormone, thus ameliorating the weight-lowering effects of elevated thyroid hormones (4,5).
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Symptoms may include unintentional weight gain or loss, persistent fatigue, palpitations, and sensitivity to hot or cold temperatures. But because other health problems cause similar symptoms, diagnosing hypothyroidism or hyperthyroidism based on symptoms alone is not possible.
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If T3 and T4 levels are high, you may have a rapid heart rate and diarrhea/weight loss. Listed below are other symptoms of too much T3 and T4 in your body (hyperthyroidism): Anxiety. Irritability or moodiness.
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Other common symptoms and signs of hyperthyroidism are weight loss despite a good or even increased appetite, increased perspiration and intolerance of heat, increased frequency of bowel movements, and irregular menstrual cycles and decreased menstrual blood flow in women.
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Hypothyroidism causes symptoms like slowed metabolism, tiredness, and weight gain. Having an underactive thyroid can decrease or slow down your bodily functions. With hyperthyroidism, you may find yourself with more energy, as opposed to less. You may experience weight loss as opposed to weight gain.
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Some people have thyroid problems (like hyperthyroidism) that increases their metabolism and causes weight loss. But most skinny guys, including ectomorphs like me, simply don't eat enough calories. Start eating more calories than you burn, consistently, and you'll gain weight.
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Since the BMR in the patient with hypothyroidism (see Hypothyroidism brochure) is decreased, an underactive thyroid is generally associated with some weight gain. The weight gain is often greater in those individuals with more severe hypothyroidism.
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Signs of hypothyroidism, a condition in which the gland produces insufficient thyroid hormone, can include hair loss, unexplained weight gain, constipation, slowed thinking, and depression. While too little thyroid hormone can skew the body temperature cold, too much can cause a person to feel hot.
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Thyroid gland At first, you may barely notice the symptoms of hypothyroidism, such as fatigue and weight gain. Or you may simply attribute them to getting older. But as your metabolism continues to slow, you may develop more-obvious problems. Hypothyroidism signs and symptoms may include: Fatigue.
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Thyroid Disorder Complications In severe cases, very low levels of thyroid hormones can trigger a loss of consciousness and life-threatening drop in body temperature. Untreated hyperthyroidism can cause serious heart problems and brittle bones.
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Symptom: Weight Gain or Loss Weight gain may signal low levels of thyroid hormones, a condition called hypothyroidism. In contrast, if the thyroid produces more hormones than the body needs, you may lose weight unexpectedly. This is known as hyperthyroidism. Hypothyroidism is far more common.
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Hyperthyroidism will also result in an increased appetite, and in some patients, an increased appetite and increased food intake may lead to weight gain, despite an increase in metabolic rate that usually accompanies hyperthyroidism.
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['Fatigue. Low thyroid function can result in less energy.', 'Cold intolerance. Slowed-down cells burn less energy, so the body produces less heat. ... ', 'Appetite loss, weight gain. ... ', 'Cardiovascular effects. ... ', 'Mental effects. ... ', 'Other signs and symptoms.']
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One of the symptoms of an underactive thyroid gland is weight gain. So, once you start taking levothyroxine, you may lose weight as your body's hormones rebalance. Losing weight can also be a sign that your dose of levothyroxine is too high.
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About half (52%) of the patients lost weight up to 24 months after initiation of treatment with LT4. Overall, weight loss was modest, with a mean weight loss of 8.4 + 9.7 lbs. "Because obesity and hypothyroidism are very common, there are many patients who have both conditions," says Ronald J.