My pet crackpot theory is that within the next 100 years semaglutide is going to be in the drinking water (much like fluoride) because the benefit to society is going to be too hard to pass up on. However, it seems that it's delivered via injection so maybe putting it in the water supply wouldn't even be effective.
I don't think anything that can influence our choices would ever get enough public approval for that.
It's funny you say that because just now the US is starting to re-consider water fluoridation: https://www.theguardian.com/us-news/2024/oct/04/fluoridation... .
It's also relative uncommon in other developed countries; according to Wikipedia, "Out of a population of about three-quarters of a billion, under 14 million people (approximately 2%) in Europe receive artificially-fluoridated water. Those people are in the UK (5,797,000), Republic of Ireland (4,780,000), Spain (4,250,000), and Serbia (300,000)."