Unless you are only riding up steep hills, aerodynamics are more important than light weight. Aero rims are also sturdier and make for wheels that last longer.

200g protein is a lot. If you want to get lighter, ride more and spend less time in the gym. 30 mile rides aren't that long. Eat more veggies and cut down on dinner.

If you are getting your calorie data for your rides from an HRM or GPS instead of a power meter, it is likely to be much higher than your actual calorie consumption. Those devices don't measure, they estimate, and they all seem to estimate high. Sometimes by 50% or more.