I have IBS and I am a fructose malabsorber and latose intolerant. And soy bothers me too - I cannot eat any soy products.
Fructose malaborption is known to produce depression in some individuals. Although IBS alone can cause enough misery to make one depressed It is possible that when you get her fructose problem under control that some of the depression may clear up. There are three research articles about fructose malabsorption given in this message. They are quite technical. In particular, the second article has a table in Figure 2 that gives a list of favourable and unfavourable foods. You will find that you will have to modify the EFI diet and recipes to reduce the fructose intake.
Some good sources of protein include oatmeal, fish, seafood and beans (if she can eat beans).
-------------------- STABLE: ♂, IBS-D 50+ years - Science of IBS
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Re: help for my daughter!
It is possible that when you get her fructose problem under control that some of the depression may clear up. There are three research articles about fructose malabsorption given in this 
