Is FT4 useful for Abnehmen?

FT4 (free thyroxine) is a thyroid hormone that influences basal metabolic rate. Low FT4 may indicate hypothyroidism, which can cause weight gain and fatigue. However, FT4 alone is not a reliable marker for weight loss. Thyroid function is better assessed by TSH, FT3, and antibodies. Many people with normal thyroid values still struggle with weight loss – here calorie balance, muscle mass, insulin resistance, and lifestyle play larger roles. A consumer FT4 test can provide hints but cannot replace a clinical evaluation. If values are abnormal, medical follow-up is essential because self-treating with thyroid hormones is dangerous. The evidence for FT4 as a standalone weight-loss predictor is weak and not supported by the provided context.