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.