Vitalzym, Zymitol, Naticor

Dear Dr. Vinograd,

I ended up at a Yahoo forum and they were talking about not being able to get Vitalzym at a discount anymore.

They suggested to look into Zymitol and Naticor, since these were designed by the person who had done Vitalzym.

Do you know anything about these enzymes? Any information
will be helpful.

Thank you,
Johanna