(well, that depends on things like: your current fitness level, your age, whether you have access to a gym, your preferred exercise routines, your preferred diet, whether your goal is to build strength, increase stamina, lose weight, etc., etc., etc. 

The diet that works is the one you actually stick to. 

Anyway, I would love to open/purchase a few clinics focused on weight loss and low carb diet and the new treatments that actually work.

Haven't thought much about this but I guess these are some habits and behaviors that have contributed to my success:-Work/Life balance-Healthy diet (most meals)-Exercise 3x Per week-Always learning (books, blogs, podcasts, forums)-Always networking (meeting agents, contractors, wholesalers, etc)-Build real and genuine connections (not surface level networking)-Always underwriting deals (even when I'm not a buyer)-Being consciously confident, decisive, passionate, positive, and creative.

They have to be on a strict diet to stay small, and most owners don't have the heart to restrict their food like that. 

I find my SFR architect has no real clue on the development side and argue with them constantly with over engineering.. finally got him to put our homes on a lumber diet...

My roommate, who was a varsity athlete, taught me how to work out at the gym and eat a better diet.

To maintain your lifestyle, diet, and exercise.Resource URL:- https://justpaste.it/3a9ya

(morality & ethics should be present)    Another good example:  Charles Poliquin (he coached more Olympic athletes that anyone) one of his last conferences a lady in the audience asked him, about how he trains/ diet plan for elite vegan athletes. 

A healthy diet of realistic expectations, patience and some work should pay off more times than not.