I'm honestly not sure this would affect everyone. We've already seen this trend for a while now. Companies sell overpriced "health" foods, green drinks that taste awful (but at least they have 500% your normal daily vitamins!), etc for way too much money already, but they exist alongside existing food options.
My assumption is that rather than affecting the whole market, this will just create a two-tier food system. One tier is for those who are optimizing their consumption because of things like GLP-1's, or them being obscenely rich, and the rest is for people who care about their health, but are, at the end of the day, persuaded more by cost than maximizing health.
Companies don't even have to make entirely different foods for each group, they just have to add some extra vitamins/protein powders to their existing products, then just package it differently and add a markup.