As of the end of June 2014, North American Pharmacal are no longer carrying out saliva secretor testing. Instead they are offering a DNA analysis test for FUT2, the enzyme that allows people to secrete their blood group. An alternative to this is the Lewis blood group test, which tests for secretor status in all but Lewis negative people.
A more comprehensive genomic test is carried out by 23andMe, and the results can be interpreted by our naturopaths. Contact Greenfields reception on 01227 454 848 to book an appointment with one of our naturopaths.