I think there have even been studies that correlate all protein intake (regardless of source) inversely with longevity, so I try not to get too worked up about

I think there have even been studies that correlate all protein intake (regardless of source) inversely with longevity, so I try not to get too worked up about not having a meal with a lot of it. Beans, lentils, peanuts, etc. have a decent amount of protein, but even bread has protein and nowadays it's not hard to find high fiber, high protein bread. I love meat so this is all difficult, and I hope to eat less over time. I think it's a balance between the short-term benefits of protein (energy, muscle) and the long term effects of high protein consumption (tough on your organs).