If there's no strong evidence of a large effect one way or the other and everyone has their own anecdotes pointing in different directions, is it really worth

If there's no strong evidence of a large effect one way or the other and everyone has their own anecdotes pointing in different directions, is it really worth worrying about? If you can say anything, it's that humans are highly adaptable to many different diets like no meat, high meat, low carb, high carb etc. Reducing meat is one of the biggest ways to reduce your own personal carbon footprint and reduce animal suffering. Those two reasons are good enough.