The ZIVOLABS journal

Things worth knowing — before, during, after.

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 library

Results

Showing 13–15 of 15

How GLP-1 works· 5 min

How does GLP-1 reduce appetite?

It acts on appetite centres in the brain and slows stomach emptying, so you feel full faster and for longer. Many people describe the constant 'food noise' going quiet.

13 Aug 2025

How GLP-1 works· 5 min

What is the difference between semaglutide and tirzepatide?

Semaglutide acts on one hormone receptor (GLP-1); tirzepatide acts on two (GLP-1 and GIP). The dual action tends to produce greater weight loss, which is why tirzepatide often outperforms in trials.

12 Aug 2025

How GLP-1 works· 6 min

What is a GLP-1 receptor agonist?

It's a medicine that mimics GLP-1, a hormone your gut releases after eating. By switching on the same receptors, it tells your brain you're full and slows digestion — so you naturally eat less.

11 Aug 2025

← PreviousPage 2