JAIanKatz,
“I’m not sure what A2 means”
As you may or may not be aware of, even those so-called lactose intolerant individuals who can’t drink commercial and confinement dairy milk where cows are fed entirely or near solely on grain, can however tolerate clean, raw milk from pastured cows. Note: these are the same “dairies” that would be weeded out of the market if it weren’t for the government. There is a large difference in raw milk as well, based on the type of grass they eat and also their breed and geographic location. Furthermore, a large distinction is made when I speak of raw-milk – I am only talkin’ about 100% grass-fed raw milk. A lot of farmers whom sell raw milk feed their cows some grain. The quantity of this grain varies from each geographic location, the laziness or ignorance of the farmer and or if the farmer “thinks” he can maximize profit because some people are ignorant of the grain or just don’t care. There is a farm in SC where the cows get fed up to 65 pounds of grain and with soy included a day! Now, 65lbs is usually only at milking, but still, cows are not naturally suppose to eat grain. Then, the best farm I found in my state feeds his cows a max. of 13lbs of grain at milking, which is better but I still won’t touch the stuff.
I don’t by how farmers use grain to try to make profit because it doesn’t work out economically; this is because grass is free. And if you use biodynamic farming practices then profit will maximize. For instance, if you have some cows on a plot of private land eating free grass, then they fertilize the fields as they pasture. As a result they produce their own food. Now, if the farmer has chickens and hens then they will pasture by following the cows natural foraging cycles and pick insects from beneath the cow dung. The farmer is now making money off of pastured chicken eggs, selling chicken, raw clean full fat milk, and meat from the slaughtered bovine. Okay, he can even make more money if he starts a cheese operation on-farm. Whats more, the left over skim milk and whey from the cheese makin process can be used to feed pastured pork, which in turn gives the farmer more profit. Now, you can see how the cycle of nature and rational thinking of man are in balance to make money and survive. Of course the farm can make more money by also growing fruits and vegetables, herbs, etc., on its beautiful rich soil from biodynamic farming. Additionally, the farmer can add goats (milk meat), sheep (sell wool) and other animals. He can also breed all those aforementioned animals to make money.
The above process should help the farmer live very comfortably. I wont derive the numbers here but a farmer has the potential to make well into the millions. He can make near the six figures on raw milk alone! However, as you may suspect, the state prevent this from happening dwith its regulations and constant harassment on these independent highly competitive small farms. Independent farmers are not even aloud to slaughter on farm because of statism. Transportation food all of the state yields more contaminated food!
I won’t get into the propaganda and bullshit nutrition advice they feed the mainstream public by demonizing raw milk and fat. (I recommend, The Untold Story of Milk, by Ron Schmid, by the way).
Anyways now onto the differences between A1 and A2 cows.
In order to better understand the following details we must know that A1 cows produce the type of milk which even those who can tolerate high quality raw milk have some congestion or other side effects to.
First, let us start with the three main components of milk: we have the most important and nourishing “stuff” (Rothbard), the fat or cream. Next, we have the whey and then, the third part, is the solids. For determination of A1 versus A2, we must look at the solids part of the milk because biochemistry tells us that fat and whey don’t have A1 or A2 in it (because there are no proteins in ‘em).
The solids part of the milk contains a number of different proteins, such as lactose, and other sugars. Specifically, we are concerned with the protein part of the solids. One of these proteins is called casein, which there is a variety of, but for our situation we are lookin’ at beta-Casein.
How 'bout a little more biochemistry now:
All proteins are long chains of amino acids which have components coming off different parts of the main chain.
Beta-casein is a 229 amino acid and in old-fashioned A2 cows it has a proline at amino acid number 16. The breeds associate with this particular genetic make-up are the older ones, the nice healthy high-fat-content-in-milk ones; e.g., Jerseys(see attached photo), Guernsey(see attached photo).
Okay, lets go back some thousands years ago. During this time period a mutation occurred and converted proline amino acid into a histidine. Therefore, this mutated beta-casein with a histidine at amino acid 16 instead of a proline are of the A1 type cows and include such breeds as the Holstein (the ones most are familiar with, black and white spots).
The side chain that comes off histidine and proline is called BCM 7. BCM 7 is a small protein, known as a peptide, which functions as a powerful opiate. It results some unpleasant effects in humans and animals. Furthermore, proline has a strong affinity for BCM 7, therefore it binds it tightly and prevents it from getting into the milk. As a result, BCM 7 is not present in the GI tract, urine and blood of A2 cows, thus it won’t be ingested by humans who drink their milk.
Conversely, histidine only has a weak attraction to BCM 7 and does not bind it tightly; therefore the GI tract, blood and urine in these A1 cows contain the leaked BCM 7 and as a result will also be present in humans who drink the milk.
If would like me to discuss the effects of A1 milk on humans, then I would be more than happy to.
Bibliography; recommend reading:
Keith Woodford on “Devil In the Milk”
best,
MLG