I agree that individual change is important, but you have to go about it a certain way. Actually the way OP is phrasing it is pretty good. Let people understand that just eating less red meat is always better.

Because if the messaging is at all confusing, you’ll get the kind of result you got during the start of Covid with the masks. It was always true that any amount of masking helped, but when you started to make it complicated, you got a lot of backlash and people completely stopped masking. And of course, with both Covid and red meat, there are people out there incentivized to make things complicated so that people give up. I think it really needs to be dead simple to work.