Short, plain-language guides on GLP-1 therapy and metabolic health, written and reviewed by ZIVOLABS doctors. No clickbait. No miracle promises.
Browse the full article libraryYou can't spot-reduce, but visceral (belly) fat often responds fastest, so waist size frequently drops quicker than the scale early on — a genuinely good sign.
Significant weight loss can leave some loose skin and facial slimming. Going at a sensible pace, keeping protein high and building muscle improves how your body looks afterwards.
Yes. Slow, steady loss (around 0.5–1 kg a week) protects muscle and is more sustainable than crash loss. Faster isn't better.
Plateaus are normal: as you lose weight your calorie needs fall and your reduced appetite catches up. Adding strength training, auditing protein, or a dose step-up usually breaks it.
Often, yes — studies show people regain much of the weight after stopping, because the underlying appetite biology returns. That's why a step-down to maintenance is preferred over stopping abruptly.
Around 15% of body weight with semaglutide and up to ~20% with tirzepatide in trials over roughly a year, when paired with lifestyle changes.
On average 10–12% with semaglutide and 14–16% with tirzepatide by six months, alongside diet and activity. Individual results vary widely.
Trial data suggest 5–7% of starting weight by 12 weeks. If you've lost under 3%, your doctor will reassess the dose or molecule.
Realistically 2–4 kg in the first month, much of it as appetite drops and water shifts. The early weeks are mostly about titrating up, so don't judge the medicine yet.
Eating much less can lower your metabolic heat and, occasionally, unmask low iron or thyroid issues. If it persists, get iron and TSH checked.
Early headaches are usually dehydration or, in diabetics, lower sugar. More water and steady meals fix most; a headache lasting beyond five days needs review.
Some craving is normal, especially under stress or poor sleep. Front-loading protein, fixing sleep and keeping sweets out of the house help more than willpower alone.
