This is a list of foods with no published FODMAP data available. I am posting it so that when you search my site you will find some kind of an answer to your query. I'll add to (or subtract from it) it as time goes along. To be on the safe side, I do not recommend any of these foods during the elimination phase of the diet:

The FODMAP status of many foods is unknown. This nutritional yeast, for example, contains a surprising amount of fiber. Is it OK for your elimination diet?

Algae
Aloe vera
Beet fiber
Citrus fiber
Coconut palm sugar
Corn fiber
Flax Seeds
Hemp
Hemp fiber
Hemp protein powder
Jicama
Molasses
Monk fruit
Soy protein isolate
Wheatgrass juice

Updates 3/2017: Hemp milk from the U.K. has been analyzed and was low in FODMAPs. Nutritional yeast no longer appears on this list, as it has been analyzed and found to be low FODMAP in a 1 tablespoon portion. Kombucha has been analyzed and found to contain oligosaccharides in an amount that makes it unsuitable for a low FODMAP diet in a 1 cup portion. Flax still has not been analyzed at Monash University but FODMAP Friendly had it analyzed and found that 1 tablespoon was low FODMAP by their standards. Pea protein powder has been given a "green light" by the Monash University Low FODMAP App, but I am still not recommending it to my patients because it I am not sure those results can be generalized to any pea protein powder.

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