| OH | Overt Hypothyroidism |
| CVD | Cardiovascular Disease |
| TSH | Thyroid-Stimulating Hormone |
| T4 | Thyroxine |
| T3 | Triiodothyronine |
| BMI | Body Mass Index |
| HDL | High-Density Lipoprotein |
| LDL | Low-Density Lipoprotein |
| WHO | World Health Organization |
| TSAT | Transferrin Saturation |
| FCM | Ferritin Carboxymaltose |
| MetS | Metabolic Syndrome |
| TPO | Thyroid Peroxidase |
| TPOAbs | Thyroid Peroxidase Antibodies |
| RDI | Recommended Daily Intake |
| CH | Congenital Hypothyroidism |
| TgAbs | Thyroglobulin Antibodies |
| SHyper | Subclinical hyperthyroidism |
| FCM | Ferric Carboxymaltose |
| HPT Axis | Hypothalamic–Pituitary–Thyroid Axis |
| ROS | Reactive Oxygen Species |
| MAPK | Mitogen-Activated Protein Kinase |
| PI3K/Akt | Phosphoinositide 3-Kinase/Protein Kinase B Pathway |
| NO | Nitric Oxide |