Keith Woodford published his book Devil in the Milk: Illness, Health and the Politics of A1 and A2 Milk. Woodford is a professor of farm management and agribusiness at Lincoln University in New Zealand. His book analyzed the potential links between the increased consumption of milk and dairy products and the increase in modern diseases such as heart disease, Type 1 diabetes, autism and schizophrenia. His book reviewed more than 100 scientific papers and concluded that a switch to A2 milk would benefit many people. His book received much international interest but also generated much political controversy and criticism from certain medical and business sectors.
Since signing the agreement with A2 Corporation, Wiseman Dairies has begun creating an "A2 milk supply pool." It has issued notices to local dairy farmers throughout the United Kingdom that it can provide herd conversion incentives and cover all DNA testing costs to determine if a cow produces A2 milk. To date, it has tested over 8,000 dairy cows and approximately one-third of these produce some A2 milk and could be bred to augment an A2 milk supply pool. Wiseman Dairies has committed to pay more for A2 milk (2.5ppl more than the average Wiseman farmgate milk price which is currently at 28.43 ppl).