This isn't quite the same thing, but last night I was lucky enough to catch a glimpse of William Shatner's "Werid or What?" There was a dude on it who was struck by lighting and suddenly developed the ability to play the piano.
Compared to that, a change in eating habits seems possible!
But seriously, maybe your body is cravings high carb foods cos' it needs the energy to heal? How's your fruit / starch intake?
"I think the basic anti-aging diet is also the best diet for prevention and treatment of diabetes, scleroderma, and the various "connective tissue diseases." This would emphasize high protein, low unsaturated fats, low iron, and high antioxidant consumption, with a moderate or low starch consumption.
In practice, this means that a major part of the diet should be milk, cheese, eggs, shellfish, fruits and coconut oil, with vitamin E and salt as the safest supplements."
- Ray Peat