I did the calculation, and figured I was consuming over 10,000 empty calories a week in booze and mixers.
This impacted my diet during sobriety, and I eventually started working with a registered dietitian. Sobriety affected my metabolism - the way my liver and pancreas regulate insulin - and getting that back on board has been a process like everything else. If i missed a meal/snack, had too many carbs, too much caffeine, etc., I would crash, get extremely tired, shaky.
And yes - i eat more sweets - mostly soda and ice cream. But not 10k calories a week worth.