I recall a thread or post a long time ago about how much of a difference diet makes to lifespan, statistically. I remember being surprised at how small the difference was. I thought it was about humans, not animals. Googling, I can't find what I thought I read. Maybe it was a different forum. Maybe it was a dream. Anyway...
Does anyone know what I might be thinking of?
Or, how much of a difference in terms of added life time do you think the best diet can make compared to the average diet for the average person? Diet can make a huge difference to an individual with particular health issues, but that's not what I'm wondering. We could just compare the lifespan of different countries, but that would have many confounding factors.
Because, I see so many people getting so worked up about about their favorite diet like they are going to live forever, or to 120, and the rest of us poor stupid fools are going to die on schedule around 80 or so if we are lucky. I always wonder, even if they are right, and their diet is much healthier than average, how much of a difference can they realistically expect, when the difference is only picking different foods or macronutrient ratios, and not a scientific breakthrough?