Remember A2 Milk, the latest rage from New Zealand?
Let's quote a reputable site, an official New Zealand government FAQ.
What’s the difference between ‘A1’ and ‘A2’ milk?
The name comes from the type of protein in the milk. Milk from cows, and any other milk producing animal, can vary quite a lot in the types and amounts of proteins they contain.
Cow’s milk contains six major proteins. Four are casein proteins, the other two are whey proteins. Casein proteins make up about 80 percent of the protein in cow’s milk. A type of casein called beta-casein is one of the major ones, and is itself of different kinds, depending on the genetic make-up of the cow. The most common are beta-casein A1 and beta-casein A2. Milk high in beta-casein A1 is being referred to as ‘A1 milk’ while milk high in beta-casein A2 is being called ‘A2 milk’.
This is good for some people with cow's milk protein allergies because they may be less sensitive to this different set of proteins.
Obviously, though, it couldn't possibly matter to those of us with lactose intolerance, right?
Well, as I reported in A2 Milk Update: Warning to LI Readers, A2 milk manufacturers are making the claim that people with LI can drink A2 milk safely. Why? Because the different proteins somehow make a difference. That there is no evidence for this claim existing anywhere in the world that I can find doesn't seem to bother them.
I hadn't heard anything more for the past year, but an article on NaturalNews.com, A2 Milk: the Solution to Lactose Intolerance, Allergies and Other Illness?, by Lynn Berry, resurrects the idiocy. And not even in their Satire section.
People with assumed lactose intolerance are able to tolerate A2 milk with research suggesting that intolerance is due to the type of milk protein present in the milk given that A2 milk contains lactose.
The article concludes by saying:
Information for this article was taken from:
I do like articles with references. That means I can check them to see if they were accurately quoted.
Not one of the three pages linked so much as mentions the word lactose. If you dig really deep on the A2milk.com.au site, however, you find this:
Q: If I have lactose intolerance can I drink a2 milk?
A: A2 milk contains the same quantity of lactose that is found in normal milk and will not resolve any medically diagnosed lactose intolerance. However some of the symptoms of lactose intolerance can be caused by other factors in milk such as BCM7 that can be released from the A1 protein found in most cows’ milk.
BCM7 is a strong opioid which has been shown to directly affect gut processes and mucus production. A2 milk does not contain the A1 protein that releases BCM7.
Link to "Research has centred on the effects of BCM7 in the body" section of the Bioactive page of betacasein.org to act as reference.
I have absolutely no idea what they think they are saying there. BCM7 has no relationship to lactose intolerance. I did check the "Bioactive page of betacasein.org." It, of course, did not even mention the word lactose.
Unless and until 40 years worth of research by the medical community is overturned and some other factor in milk than lactose is implicated in lactose intolerance, I urge my readers not to be taken in by any magical promises made by A2 milk. Treat it exactly as your would any other milk: no better, no worse.