It is chemically identical to the semaglutide in Ozempic and Wegovythe same molecule that activates GLP-1 receptors in your brain to reduce appetite, slow stomach emptying, and improve blood sugar control
Based on the 2026 Clinical Obesity review of 480,825 adults, the most commonly deficient nutrients in GLP-1 users are vitamin D (13.6% deficient by 12 months), iron (2630% lower ferritin than comparators), calcium, and B12
Energy levels are typically good, often better than before starting the medication due to improved metabolic function and reduced inflammatory burden
Severe deficiency causes irreversible neurological damage and subacute combined degeneration of the spinal cord, a condition that does not fully reverse even with aggressive B12 repletion
Studies, including the landmark SURPASS-2 trial, have showcased tirzepatides remarkable ability to drive weight loss, with some patients experiencing up to three times more effectiveness compared to Ozempic within a year