There's a lot of poor science behind the paleodiet hypothesis - though it may well work as a healthy diet. The one point I'm going to make is that our ancestor

There's a lot of poor science behind the paleodiet hypothesis - though it may well work as a healthy diet. The one point I'm going to make is that our ancestors of a million years ago ate a very wide range of diets that were entirely ecosystem & lifestyle dependent (as we still observe in the modern world). So there is no such thing as "the diet" our ancestors ate, they ate many diets, some were better than others. I also find the assertion that our digestion - even in terms of commensal gut bacteria - hasn't changed in that time a bit odd. We observe rapid adaptations to diet (e.g. in a handful of generations) in other species.