Have you seen the recent post about the newly redesigned Schulze web site? Schulze now offers a section on his site for people to pose questions, by email, and he then will answer some of these. This might not provide you a timely answer. Short of that, here is my best guess at what Schulze would say in response to your wife's situation.
On the overall, Schulze does not buy into the widespread fear that has set in among the masses in recent decades and is generally known by many people as "allergies". We've all been conditioned to accept that most of us are born with various defects wherein our body cannot tolerate certain natural substances, and over the years many of us have come to accept and know this broad situation as "allergies". From my observation, the public opinion on "allergies" does to a significant extent involve fear factor. After all, some people experience reactions of some unknown (precisely) quantity or quality that are so severe that some people die from "allergies", right?
Schulze does agree that many people, one by one, do experience adverse reactions to many things, including many food-stuff things. This said, Richard Schulze generally believes that adverse reactions to natural food substances does not really constitute the "allergy" as we've been lead to believe. Contrast this with, for instance, how a person's body might react because they ingested something loosely along the lines of "food", perhaps food that was genetically modified and saturated with lots of chemicals and antibiotics and steroids before being brought to market. When it comes to the person who experiences an allergic reaction after ingesting some of this, what are they reacting to, exactly? As far as I know, Schulze's Super Food is made with wholesome, natural, organic ingredients, but these ingredients were taken out of the same earth, water and air spaces that we all inhabit.
To sort of shorten this otherwise long story, if Schulze were here and addressing this situation, he might tell you that there is no such thing as deadly allergy to natural food substances. There are, though, many circumstances in which people may experience reactions - mild to severe, upon ingesting any of various kinds of natural food substances. I've seen/heard him state this in lecture; when this is the case, try taking some of the offending food in much smaller amounts, and then gradually allow your body to adjust to whatever it needs to adjust to, increasing the amounts ingested over time. At some point, the body should get over it. The basis of this concept is, while it is normal for different people to experience different reactions to natural food substances, it is not normal for people to have a deadly reaction to natural food substances.
At some point, the body should get over it. Whether or not the mind gets over it is another question all together. "allergies" have very much become a matter of fear factor. It's not easy to know what a person might harbor in their mind when it comes to fear of allergies. There was one time that I literally almost worried myself to death over a bee sting. I survived both the physical reaction ( a decent sized swelling) and the mental reaction (panic, fear, that eventually lead to racing heart/pulse, shortness of breath...basically, hysteria). From this point of view, some people might rather be offered a solution that takes away their fear rather than solving the situation. I don't want to make any assumptions and do not want you to think i'm being judgmental. It is for you and your wife to decide what is best for you. But if there is a chance that there is a lot of fear involved, the safest thing to do may be to just put away the Super Food and not take it anymore.