The medicine she's promoting is not approved for use in New Zealand - and probably not made here at all
Indications and Usage Ozempic (semaglutide) injection 0.5 mg, 1 mg, or 2 mg and Ozempic (semaglutide) tablets 4 mg or 9 mg are indicated: as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes Ozempic injection is indicated: to reduce the risk of major adverse cardiovascular (CV) events (CV death, nonfatal myocardial infarction, or nonfatal stroke) in adults with type 2 diabetes and established CV disease to reduce the risk of sustained eGFR decline, end-stage kidney disease, and cardiovascular death in adults with type 2 diabetes and chronic kidney disease Ozempic tablets are indicated: to reduce the risk of major adverse cardiovascular (CV) events (CV death, nonfatal myocardial infarction, or nonfatal stroke) in adults with type 2 diabetes who are at high risk for these events References: Ozempic injection

Participation in a properly regulated trial is currently the only legitimate route through which a patient in the UK might access this medication
How do I get started with a weight loss program
(2019) 317:E55972
Richa Mittal, MD, triple board-certified in internal, obesity, and lifestyle medicine, and owner and founder of Radiant Health Dallas, agrees