I don't know that movie, but there is no such consensus.
What I take from people who know this stuff better than I do: There's reasonably good evidence that a diet should have a large amount of vegetables and fruit. There's controversial evidence that red meat is particularly bad.
However the big issue with meat in the diet is not health, it's climate. It's pretty clear that on average meat has a much higher carbon footprint than plant-based food, while some forms (particularly beef) stand out as particularly bad.
Your last point is important. I feel like we need new terminology. “Sustainability inspired diet” or something catchier.
I’ve been a vegetarian/flexitarian over the last three years, with the decision being entirely climate-related as opposed to welfare-related (although this is important in its own right). When people enquire it always feels like I have to explain the decision and that I don’t necessarily align with more extreme viewpoints, for example veganism
What I take from people who know this stuff better than I do: There's reasonably good evidence that a diet should have a large amount of vegetables and fruit. There's controversial evidence that red meat is particularly bad.
However the big issue with meat in the diet is not health, it's climate. It's pretty clear that on average meat has a much higher carbon footprint than plant-based food, while some forms (particularly beef) stand out as particularly bad.