Does lack of blood sugar make some people cranky?

And does that look like the symptoms of mental illness when if fact it's
something else?

Carl Pfeiffer and the rest of the orthomolecular psychiatry movement
have uncovered lots of evidence to show how food affects the mind.

It begs another question? Does being vegetarian cause mental illness,
and if so what laws are going to be put into place to stop people
becoming mentally ill because of their diet?