Any study that for a meaningful period of time (say 50 years) followed a larger number of people to prove that their diet, being low in carbs, have given them a longer, healthier life, compared to everyone else.
Otherwise it is as meaningful as me claiming youll live longer if you stand on your head and eat a banana every day at noon.
I don't know about that, but I'll see what I can do.
How about this? We both know that obesity, insulin resistance, type 2 diabetes, fatty liver, fatty pancreas, severe acid reflux, don't lead to a long healthy life. Can we agree on that?
If so, then a diet that not only prevents the above conditions but also reverses them would give people a longer, healthier life. Don't you agree?