can we maybe not propagate misinformation? it was perfectly normal for hunter-gatherers to reach at least 50 years old, and if you think about it for a bit it makes sense that the age where we start to fall apart is about the oldest that people got to in the past, which is around 50-60 yrs.
the average lifespan in the past was something like 35, but that’s because tons of people died early on, which remained true up until the invention of modern medicine which was like 100 years ago and doesn’t really have anything to do with your diet.