I am seeing KDM for the first time next week. I am having the fructose and lactose breath tests. The guidance says: 'Avoid food with a lot of fibres (brown bread, bran, pasta, chocolate, spicy sauces, muesli, fruit and vegetables)' This list seems a bit random - can't quite understand why spicy sauces are high in fibre. Does this mean just stick to white bread/pasta, potatoes? Would porridge be OK? Should all fruit and veg be avoided?