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TSHUpdated 3 months ago

What is Thyroid Stimulating Hormone (TSH)? 

TSH is a hormone produced by the pituitary gland, stimulated by thyrotropin-releasing hormone (TRH) from the hypothalamus. TSH signals the thyroid to produce T4 (inactive) and T3 (active), which regulate metabolism. A change in TSH levels can indicate thyroid issues, such as hypothyroidism or hyperthyroidism.

Why is TSH Important? 

TSH helps monitor thyroid function, which plays a key role in regulating metabolism, body temperature, growth, and energy levels. Tracking TSH can provide early signs of thyroid problems.

TSH Level Ranges (UCLA Health):

  • Very low: 0-0.5 uIU/mL
  • Low: 0.5-1 uIU/mL
  • Optimal: 1-2 uIU/mL
  • High: 2-5 uIU/mL
  • Very high: > 5 uIU/mL

High TSH may indicate hypothyroidism (symptoms: weight gain, lethargy), while low TSH may indicate hyperthyroidism (symptoms: weight loss, anxiety). Testing TSH in the morning is recommended due to its circadian rhythm.

How to Maintain Optimal TSH Levels:

  • Diet: Avoid excess iodine, follow a Mediterranean or vegetarian diet, and adjust nutrient intake.
  • Lifestyle: Quit smoking, exercise, and improve sleep quality.
  • Supplements: Myoinositol, selenium, zinc, vitamin D, and ashwagandha can help regulate TSH levels.

DISCLAIMER:

If you are concerned about your TSH levels always consult your physician.

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