You should contact your prescriber if you are unable to eat enough to meet basic nutritional needs for more than a few days, if you are losing weight faster than expected (more than 1 kg per week consistently), if you develop persistent vomiting that prevents you from keeping food or fluids down, or if you notice signs of nutritional deficiency such as unusual hair thinning, extreme fatigue, or mouth ulcers
Close monitoring and communication with your healthcare provider help distinguish between these possibilities
The method you choose depends on your health goals, personal preferences, and the peptides you use
This testing reveals your biological predisposition to weight loss responsiveness, side effect susceptibility, and optimal medication choice, enabling truly personalized therapy rather than one-size-fits-all prescribing
What happens if it doesnt work well
Clinicians should be aware that significant weight loss from tirzepatide may affect levothyroxine requirements in patients post-ablation or post-thyroidectomy, as thyroid hormone replacement dosing is partially weight-based