An underactive thyroid gland, known as hypothyroidism, can cause weight gain by slowing down the metabolic rate. Thyroid hormones have a direct effect on the body\u2019s energy production and use. Insufficient hormone production leads to a decrease in the basal metabolic rate.<\/p>\n
In hypothyroidism, weight gain is generally related more to water and salt retention than to fat. Therefore, weight gain may be limited; however, being unable to lose weight despite diet and exercise is a common complaint. It is important to measure hormone levels under a physician\u2019s supervision.<\/p>\n
Weight gain accompanied by symptoms such as fatigue, constipation, hair loss, and sensitivity to cold may be thyroid-related. Evaluating TSH, free T3, and T4 levels helps with diagnosis. If necessary, hormone levels are balanced with medication.<\/p>\n
After thyroid treatment begins, metabolism returns to normal and weight control becomes easier. However, dietary and exercise habits should also be reviewed during this process. Lasting success includes lifestyle changes together with medication.<\/p>\n
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