My Day on a Plate: Jenny Eclair 9.50am On tour, the charm of a full English quickly wears off. My diet is entirely tomato- and citrus-free because they trigger severe mouth ulcers. I eat melon then poached egg with unbuttered toast (I'd like a pile of spinach but rarely get it), with cranberry juice and peppermint tea. 11am Swim in the hotel pool before strolling around town. Take a banana. 1pm At home I make salads with beetroot, seeds, spinach and butternut squash. On tour, I seek something similar for lunch. 4pm I'm picked up for tonight's gig. 7pm My rider always includes a Diet Coke and low-calorie tomato-free sandwich, which usually turns out to be boring chicken. I tour with a bottle of low-fat mayonnaise and have crisps on hand to cram into the sandwich while I do my make-up. 8pm Lots of water on stage. 10pm After the show it's easy to con myself that I've done a full work-out (I do attempt a cartwheel on stage). Half-bottle of pinot grigio and crisps in the car. Tickets for Jenny's new stand-up tour, 'Eclairious', are available now It's not unusual for people who have citrus allergies to also struggle with tomatoes - botanically, they're related. Jenny's restrictions do not mean she misses out on vitamin C; her lunchtime choices make sure of that. She's pretty calorie-conscious, but I suspect this may be to allow for wine and crisps rather than to lose weight.