I have, and it certainly didn't work for me. My 'intuition' would go 'Hey, a ripe banana is healthy and satiating, better buy a bunch' or at the supermarket with my slim non-diabetic husband, but before I knew I was diabetic, having to choose between a bag of frozen rice/sweetcorn and peas or a broccoli/carrot mix, he'd go for the latter whereas I'd go for the first. When in India I got a crush on a locally grown fruit called 'chikoo'. It was yummy and fruit, so hey, must be healthy ...? A couple of years later I read in an Indian diabetic cook book to steer clear of those exact fruits. So you might say that I use my intuition now, but I've turned the rule upside down. If you like it, don't eat it.