Ozempic Threatens Profits at Food and Beverage Makers Worldwide
bloomberg.com
bloomberg.com
TERN and GPCR are also in the game.
Not every obese/overweight person who takes these drugs loses a lot of weight. some lose a lot, but others may only lose 8-13%, hence there will still be a lot of obese or overweight people even with full market penetration
Some people discontinue usage due to side effects or other reasons
It's possible that these drugs eventually stop working. This is a common problem with weight loss treatments in general, such as bypass or band, in which lost weight is regained after many years due to the body adapting or other reasons. The body is really good at resisting weight loss and will do everything possible to try to return the weight to its set point.