I've been confused by that for years as well, @schattenjaeger. I've come to the conclusion that there's pretty much no such thing as "one size fits all" when it comes to health. Mainly because we are all different, have grown up eating diff. things and living in different environments, which effects what WE personally need.
I think not just shape physically, but healthwise can tell you if someone is healthy or not. I have a friend that LOOKS super healthy. She's thin, basically has a 6 pack, super toned...and she eats healthy but she's unhealthy and she knows it.
She deals with adrenal fatigue and has several health issues. Diet can also cause a lot of mental issues, too, so if someone looks healthy but is dealing with depression and anxiety, it could be because they're not optimally healthy.
After years and years of trying to fix health problems I have, I found this thing where you take a hair test and it tells you EXACTLY what YOUR body needs and what is good for YOU based off of the levels of minerals that are in your body.
It also tells you if you have toxic metals that could be causing forgetfulness, spaciness, anger, depression, panic attacks, etc.
Very accurate and VERY helpful. So idk, I think I'm close to finding the answer to that endless question of "which diet is best?"
What is this test called? Where can you get it done?
It's called htma hair test. It's crazy accurate. You can get it done through ARL labs. If you do it I'd love to hear your results