Score one for a wheat allergy:

The truth was shocking. The tortilla alone was 290 calories, plus beans and rice added another 250 calories. That was 540 calories before I even made a real choice. For my favorite burrito — chicken with corn salsa and guacamole — the grand total was about 960 calories. Here I was making "healthy choices" at Chipotle, and I'd blown nearly half a day's suggested calories.

It's been fascinating to watch how my new diet has affected me. Adjusting to fewer carbs has meant a long phase of relative tiredness now beginning to lift. But my muscle-fat ratio has shifted in the right direction a little. The rash is now gone.