A simple fuel/energy exchange system would be nice. Something along the lines of how my car works. Combustible material goes in, is turned into kinetic energy, repeat. So none of this "you consumed too many carbs and didn't burn enough off so I'm just gonna store that as fat rolls for you" bullshit! If I'm not using the fuel, you keep the fuel there in its raw form until I am using it.

While we're at it, if I've just put viable fuel in, and I have stuff to do, I expect to feel energetic! The onus should not be on me to precipitate that energy by forcing myself into the activity that feels impossible because of the endless, oppressive lethargy that plagues my every waking minute. No. Fuel in, BING, energy go!

Yeah I don't know if this is within the scope of this question but I am SO FED UP with my body being like "naaah, still don't feel like it" when I am treating it better now than I ever have before in my life.