Myths vs facts: SHBG and Müdigkeit

SHBG (sex hormone-binding globulin) is often linked to fatigue, but the evidence is indirect. Low SHBG can indicate insulin resistance, metabolic syndrome, or fatty liver – conditions that may cause tiredness. However, a direct causal relationship between SHBG and fatigue is not established. SHBG levels are influenced by diet, exercise, thyroid function, and estrogen status. A blood test for SHBG can provide clues, but interpretation should always consider other markers (e.g., free testosterone, insulin, liver enzymes). Myth: SHBG alone causes fatigue. Fact: Low SHBG is a marker for underlying metabolic issues that can contribute to fatigue. For persistent tiredness, a comprehensive medical workup is recommended.