I care for a POA who is a fattie! He gets free choice grass hay with only a handful of grain because he thinks he should get some too and he is on turn out 100% of the time except if weather is bad – meaning horrible winter storm or when it is 90 degrees or hotter.
I let him eat hay for about an hour and a half and then he gets his grazing muzzle on for the rest of the day and then about 630 he gets it taken off for the night.
I can see his hips again although he does have a flat couch like back still.
I think he looks at hay and gains weight.