Food Freedom: Is SOY cruel and unusual punishment?

This is not about any particular individual's cooking; I just want to make that clear.  It seems some prisons use too much soy in their cooking for the preferences of some prisoners.  In at least two states, prisoners have sued, arguing that the soy-based meals constitute "cruel and unusual" punishment.

From Huffington Post:

Florida prisoner Eric Harris, 34, currently serving a life sentence for sexual battery on a child, has filed a lawsuit that claims serving soy-laden meals to inmates is a form of cruel and unusual punishment. According to the Orlando Sentinel, Harris claims that the meals of processed and blended soy foods "have caused painful gastrointestinal cramping" which threaten the health of Harris' thyroid and immune system.

In a similar case in Illinois, a District judge recently denied summary judgement. From Weston A. Price Foundation, which represents the plaintiffs:

WASHINGTON, DC. October 25, 2011.  Honorable Judge Harold Baker of the United States District Court for the central district of Illinois has ruled that litigation challenging the use of soy foods in Illinois prisons will go forward. In his September 9, 2011 ruling, Judge Baker denied motions by the State and Wexford Health Sources for a summary judgment in their favor, thus bringing the case closer to trial. The ruling emphasized the importance of scientific and medical testimony at the trial. . . .

. . . The lawsuit claims that feeding of soy-laden food constitutes cruel and unusual punishment in violation of the eighth amendment to the Constitution, as well as a denial of plaintiffs’ liberty in violation of their due process rights under the fourteenth amendment to the Constitution. 

I like soy foods.  I often add soynuts to my hot cereal.  My daughter pours soymilk on her cereal or uses it in her chai tea lattes.  And I would never eat an animal.  But the Weston A. Price folks are convinced soy is bad for us, and they're not the only ones.  I haven't done any research on soy, but it is one of the eight allergens that must be labeled under the Food Allergen Labeling and Consumer Protection Act of 2004.  If it's not cruel and unusual to feed a prisoner yucky food (e.g. nutraloaf), surely it is unacceptable to ignore individual food allergies . . .