They occur as caseins, whey proteins, enzymes, minor proteins and nitrogen compounds. Milk proteins are a heterogeneous group of polymeric compounds that have a wide range of different molecular structures and properties. Keywords: A1 and A2 Beta Casein Beta Casomorphin Devil in the milk Thus, it’s the nation’s and government’s responsibility to cease cross breeding programmesĪnd protect purity of older (indigenous) breeds through using semen for bulls that have been tested asīeing A2A2 and culling of A1A1 and A1A2 cows by selective retention of A2A2 calves.

Mellitus, autoimmune and cardiovascular diseases and other illness such as autism and schizophrenia areĪlso reported. Strong correlation between consumption of BCM7 containing A1 milk. BCM7 is implicated in digestive, immune and brain development changes and A1 but not A2 β-casein liberates the β-casomorphin-7 (BCM7), A1 and A2 milk variants differ by a single amino acid, resulting in differential secondary Genetic variants of beta-casein, the problematic type of casein protein found in milk is the A1 beta casein,ĭevil in the milk. Of β-casein (~30% of cows’ milk-proteins) are genetically determined A1, A2, A3, B, C etc. However, casein free diet is recommended for infants with immunological sensitivities. The UK is unlikely to follow so will continue to have a high incidence of type 1 diabetes.Ģ.Milk is the highly evolved secretion of mammary glands of mammals and the most perfect food for infants. There is an exception in New Zealand where some farmers are breeding A2 milk producing herds. Sadly due political pressure, commercial interest and faulty research the hypothesis is not widely accepted. Cows in France and Iceland produce more A2 milk so there is a lower incidence of type 1 diabetes in these countries. The amount type 1 diabetes in a country is closely correlated to the amount of A1 milk consumed. Antibodies produced against BCM-7 therefore destroy the pancreatic beta-cells leading to in type 1 diabetes. GLUT-2 receptors on pancreatic beta-cells have the same amino acid sequence as BCM-7.

On digestion A1 beta-casein breaks at positions 60 and 67 producing the peptide BCM-7.

A2 beta-casein has proline at position 67. A1 beta-casein has histidine at position 67. A mutation in some European cows caused their milk to contain A1 beta-casein.īeta-casein protein is a 209 amino acid chain. Thousands of years ago all milk contained only A2 beta-casein. The Masai drink a lot of milk but do not develop type 1 diabetes. A2 milk, produced by cows in Africa and Asia, does not have this risk. Type 1 diabetes is caused by A1 milk which is produced by most cows in Europe, America and Australia. Different countries have varying rates of type 1 diabetes according to type of milk consumed.

Devil in the milk by keith woodford