New Research validates consumer fears
Parents for many years have suspected that cows milk was causing health
problems in their children and they were right.
tell us that Cow’s milk contains six major proteins
of which two are whey proteins and four are casein proteins
which make up about 80 percent of the protein in cow’s milk
and of these four, a major one is known as Beta Casein (or
Beta Casein is separated into beta-casein A1 and beta-casein
A2 and the type of beta-casein present in the milk depends on the
genetic make-up of the cows. So A1 is called ‘A1
milk’ while milk high in beta-casein A2 is being called ‘A2
milk’ and these are now appearing on New Zealand and Australian milk
What’s the difference between ‘A1’ and ‘A2’ milk?
Perhaps you need to read Dr Keith Woodfords New book 'Devil
in the Milk' which highlights the controversial properties
of milk, or the best
Milk A-Z by Robert Cohen and
Don't Drink Your Milk! which presents medical facts
about the problems associated with milk by Frank A. Oski
to gain a wider view.
How has A1 milk appeared?
It is thought that
A1 is a rogue peptide that mutated in cows hundreds of years
ago and has since been identified though research as a
possible trigger not only for childhood diabetes but also
heart disease, autism and schizophrenia. But those with
vested interests dispute the research findings.
What milk am I drinking?
Milk produced in most countries
normally contains a mixture of A1 and A2 beta-caseins.
Different breeds can produce different milk. For example
Friesian cows produce mostly A1 milk, while Guernsey cows,
sheep and goats produce mostly A2 milk.
Should I stop drinking milk?
If your health is perfect, no, but if your health is not so
good, or if you have allergies then yes. While milk can be nutritious and beneficial,
remember that cows milk was designed for calves and not
What are the risks?
Research recently published in the New Zealand Medical
Journal has suggested there is a possible link between milk
protein consumption and heart disease and insulin-dependent
diabetes. Researchers Dr Murray Laugeson and Professor
Emeritus Bob Elliott collected data from various sources
from 20 wealthy countries and reported a significant
correlation between the amount of A1 beta-casein consumed in
a country and the national rate of coronary heart disease.
They also found a similar correlation between A1 beta-casein
consumption and the rate of childhood type 1 diabetes which
may be interpreted that Beta-casein A1 is may cause or
trigger Type 1 diabetes in some children who have a genetic
predisposition to developing it.
The NZ Food Safety Authority
NZFSA commissioned an independent expert, Professor Boyd
Swinburn, to analyse the available published literature on the
A1/ A2 issue. That Review is now available but inconclusive
other than saying more research is warranted. Overall, the NZFSA position continues to be that milk is important in the
diet, and that there is insufficient evidence to suggest any
change to this current advice about the value of milk in the
diet. NZFSA will continue to monitor developments and
research in the area and seek expert advice if and when such
research becomes available, we think differently.
Commercially A2 Milk is a trademark of the A2 Corporation,
which is licensed by milk distributors to apply to cows'
milk which has been tested to ensure it contains a higher
proportion of A2 type beta-casein than regular milk. The A2
Corporation has developed a test, where DNA from a cow's
tail hair is examined to determine whether the milk they
produce will be high in the A2 protein. Milk producers can
test all their cows, and separate those that produce A2 milk
from those who do not.
Unfortunately this higher percentage is not 100% so
consumers should be warned that those sensitive to milk
could still be badly affected by the A2 milk. Autism, Heart
disease, Schizophrenia and Diabetes may be linked to A1
protein and certain proof is a long way off.