In one of the recent papers they recommend restricting fructans consumption to about 10-20 grams/day. A 65 gram slice of white bread contains about 2 grams. I try to keep my total fructan intake near the lower end of the range. I ~seem~ to be ok I eat some wheat and I don't worry about gluten.
I don't eat spinach or lettuce. My vegetable consumption is strictly limited well boiled vegetables.
I make my own from tomato sauce from using pure tomato paste (Hunts or Almer's), olive oil, red wine, chicken stock, salt and basil. I add about 1 tsp dextrose (glucose) for each 1-2 tbs of tomatoe paste to balance the excess fructose. I have Bison meatballs in tomato sauce on linguine about once every 10 days or so. Needless to say on those days I limit my fructan intake from other wheat sources.
If you have access to a university library you might try to get a copy of the reference below. It contains accurate amounts of excess fructose and fructans for 100 or so common Australian fruits and vegetables.
Reference
Muir, J. G., S. J. Shepherd, O. Rosella, R. Rose, J. S. Barrett, and P. R. Gibson, 2007: Fructan and Free Fructose Content of Common Australian Vegetables and Fruit. J. Agric. Food Chem., 55, 6619-6627.
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