This is a bit harsh. Basketball players are in great shape, especially at UConn. The sport isn't like soccer, where you are running for an hour straight. Some positions take a lot of brute strength and you need power in your butt and thighs (posting up, boxing out, etc) while others take speed and quickness (guards, wings, etc). It's a mixed bag and there is no one "perfect" body type.
I sincerely doubt these players go home and eat "gallons" of ice cream.
College kids are up late studying, and have notoriously bad diets, so that might contribute a little. But when they are on the road I'm sure the coaches know what they are eating, to a certain extent.
Others, like KML, will never have a lean body type. Add in injuries/rehab/inability to practice, and you have weight gain for some players.