Daily UI Challenge - Calculator

I decided to not redesign a simple calculator app again and again. So here's the project of a simple calories calculator - you can count calories and macroelements intake by adding products from the database. As you set your goal in the profile settings, the calculator monitors how much you have already consumed during the day and how much is still to be consumed.

I tried to make the design simple and clean, but also functional. That's why I put the most important buttons near the bottom right corner - you can reach them with a thumb, so you don't have to involve your left hand (which is very handy, especially when you're logging your meals while preparing food).

Daily charts visualize the numbers, making it easier to compose balanced meals during the day.

I hope you like it and I really count on some constructive criticism :)