Use

Measuring selenium blood levels is useful for optimizing health and hormone balance, as selenium plays a vital role in thyroid function, antioxidant defense, and immune regulation. Adequate selenium supports the conversion of thyroid hormones, impacting metabolism, energy levels, and overall endocrine function. A deficiency can lead to fatigue, brain fog, weakened immunity, muscle weakness, infertility, and thyroid dysfunction, including hypothyroidism. Conversely, excess selenium can cause symptoms such as hair loss, brittle nails, nausea, digestive issues, a garlic-like odor in breath, irritability, and, in severe cases, nerve damage. Monitoring selenium levels allows for precise dietary and supplement adjustments to maintain optimal health without the risk of deficiency or toxicity.