Why are some groups thin while others are bigger?

jennifer_bloom
I believe it’s due to how acidic or alkaline their diet and body is but what is your theory? Most say that thin people have more self control but I think that is untrue. I know thin people who dine at restaurants every day and don’t work out and I know fat people who eat very healthy diets. Another possibly is that rich people have better gut microbes because they eat more diverse foods, I used to take over 20 types of herbal supplements a day and even though my weight did not change, my body got a lot slimmer.
Why are some groups thin while others are bigger?
2 Opinion