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FoodChain ID - Your competent partner for accredited A1/A2 SNP genotyping tests

FoodChain ID offers an accredited, Real Time PCR-based A1/A2 SNP genotyping test. Ear punch samples, hair or other tissue samples can be sent to us as test material. 


Through mutations, different variants of beta-casein have arisen throughout the history of cattle. Cattle of European origin possess 13 different alleles of the beta-casein gene. The beta-caseins A1 and A2 are by far the most common variants in our cattle. The A1/A2 alleles differ only by a point mutation. This leads to the fact that during the digestion of A1 beta-casein in the human gastrointestinal tract the bioactive peptide BCM-7 (beta-casomorphin 7) is split off, but not in A2 beta-casein. 


Whether this fact has an impact on human health is still not conclusively determined. The distribution of A1/A2 alleles depends on the breed, thus drinking milk from non-selected herds has a mixture of A1 and A2 beta-caseins.


Some dairies recommend their contract farmers to rebreed their herds to a homozygous A2 genotype, a corresponding "A2 milk" is partly already marketed, although the share in Europe is very low.


Contact us with any questions or if we can help you in any other way. (Phone +49-821 74 77 630 / Mail info@foodchainid.de )