I am not a doctor.
the premise of the Candida diet is not that one has a food allergy, but that a crappy diet + course of antibiotics has led to an unusual and unwanted balance of bacteria / fungi (yeast, basically) in your gut – and that this can affect the way you feel.
summary of the diet: lay off the refined carbs to starve out the yeast. if you’re being extra harsh on yourself you can try avoiding too much fruit.
it’s not a weight loss diet, it’s a ‘so you want to stop feeling crap all the time?’ diet.
it might well all just be rubbish, but it’s a simple concept and course of action. No buying of stuff required.
in practice it means lots of veg and beans – isn’t that similar to the idave diet?
beans on toast for breakfast, in.
sugar-coated chocolate-pops, and half a litre of oj, out.