Observational analysis reveals thyroid hormone fT3 positively affects lipid levels in men, suggesting broader implications for heart health.
Among euthyroid subjects, fT3 seems to have a significant and consistent favorable association with lipid levels, especially with HDL cholesterol. This positive association of fT3 with HDL is more marked in men and in subjects with TSH ≥ 3 µIU/mL.
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Sudharshini et al. (2026) studied this question.
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