Think of it this way: If tirzepatide is the brilliant architect designing your new, healthier life, B12 is the on-site manager making sure the entire project has the energy and resources to get built
"Learning to Cut the Sugar", The New York Times , February 19, 2014 (interview)
De Leenheer, A
Whilst some cycle changes may accompany weight loss, persistent irregularities should be evaluated to exclude other causes such as thyroid dysfunction, hyperprolactinaemia, or structural abnormalities
You might experience: These symptoms can show up suddenly and may not improve with rest or over-the-counter treatments
GLP-1 agonists do not typically alter thyroid hormone levels in patients with normal thyroid function, though TSH may decrease with weight loss