I called this out atleast ten years ago and can't/couldn't believe how poorly the minor leagues are being ran by organizations. You have 18,19,20 year olds still maturing and growing, getting paid peanuts (most of them), more often then not, they can't afford healthy food and/or don't know how to prepare it. You can pay a guy $20M/year but can't drop a million or two on a chef and food for your minor leagues? This is your future you're investing in, why would you neglect it.
Now I'm not sure how much it's changed over the past few years but years ago there was no investment in nutrition and fitness at the minor league level.