Thyroid

TSH

Thyroid-Stimulating Hormone (TSH) regulates thyroid function, affecting metabolism, energy levels, and overall hormonal balance.

What it is

Thyroid-Stimulating Hormone (TSH) regulates thyroid function, affecting metabolism, energy levels, and overall hormonal balance. High TSH levels indicate hypothyroidism, leading to fatigue, weight gain, and slow metabolism. Low TSH levels suggest hyperthyroidism, causing weight loss, anxiety, and rapid heart rate. Monitoring TSH helps assess thyroid function, guiding treatment for hormonal imbalances that impact metabolic health, cardiovascular function, and overall well-being.

What affects your levels

High TSH is often due to an underactive thyroid (hypothyroidism), iodine deficiency, or autoimmune conditions like Hashimoto’s disease. Certain medications and stress may also contribute. Low TSH is usually caused by an overactive thyroid (hyperthyroidism), excess iodine intake, or conditions like Graves’ disease. Identifying thyroid dysfunction helps optimize metabolic health and prevent complications like cardiovascular issues and fatigue-related disorders.

Signs and symptoms

High TSH (hypothyroidism) can cause fatigue, depression, dry skin, constipation, and cold sensitivity. Low TSH (hyperthyroidism) may result in rapid heart rate, anxiety, sweating, and weight loss. Long-term imbalances can lead to metabolic disorders, heart problems, and fertility issues. Regular thyroid function testing, a nutrient-rich diet, and medication when necessary help maintain hormonal balance, preventing complications related to thyroid dysfunction.

Foods that help

For hypothyroidism, iodine-rich foods like seaweed, fish, dairy, and eggs support thyroid function. Selenium-rich foods like Brazil nuts and tuna help regulate hormones. For hyperthyroidism, cruciferous vegetables like broccoli and cauliflower can slow thyroid activity. Whole grains, beans, and lean proteins help maintain balanced thyroid hormone production, ensuring stable energy levels, metabolism, and cognitive function.

Foods to limit

For hypothyroidism, excessive intake of processed foods, refined sugars, and trans fats can worsen symptoms. Soy products, gluten, and high-calcium foods may interfere with thyroid medication absorption. For hyperthyroidism, iodine-rich foods, caffeine, and spicy foods may exacerbate symptoms. Reducing inflammatory foods and managing iodine intake helps regulate thyroid hormones, improving energy levels, weight control, and overall hormonal health.

Educational information only — not a diagnosis. Every Pheno result is interpreted in context and reviewed by a physician.

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