I totally understand what u mean. But i I don’t think they are saying we have sz because we have this gene / mutation. U can have this without developing into sz. But this is one of the factor to consider if u have a severe health problem. And I think it is a good one. I dont think u would want to ignore them and let yourself know nothing if u have a psychiatric disorder.
In fact, if u have this defective enzyme, intake of huge amount of folic acid can be a problem to your body!
This is not a rear gene. They encourage everybody to check and find if they have deformed enzyme and an abnormal level of homocysteine. And then there are a few things one can do. You should have you close family member tested for these as it pass on in the family and u can take care of this enzyme abnormalities by taking in an altered form of the nutritional supplements to bypass the action of the enzyme plus some natural ways to work on your digestive enzymes.
What is beautiful about this line of effort is not only about to the inexpensive lab tests u can get to know if this is happening to your body. there is sensible solutions to get back to health again. It is working much closer on the cause (enzyme and nutrients) than the symptoms (abnormalities in the neurotransmitters).
As far as i know, they are not charging enormous price for the vitamins and u don’t need to buy a specific brand of nutrients as food are generic and not patented.
I actually chose those links mainly because they are a concise read and most of us prefer short read. I don’t mean u will learn enough about MTHFR and homoecysteine from the link or that the site are very special.
May I ask what u are so skeptical about?