Effects of A1 vs. A2 Milk

This past winter we drank regular store bought, whole milk for about four or five months, because all of the goats were pregnant and not producing milk. After a few months, Frank and both started having more and more head congestion, drainage and ick in our throats. Frank also developed a mild, daily cough of sorts, especially in the mornings. I was constantly having to clear the mucous from my throat, worse in the mornings, but it lasted all day long.

After a few months I really began to wonder if we were developing some kind of allergy, but I couldn’t figure out what it would be. Then one day I remembered that there are many people that react to milk with allergic type symptoms, and I began doing more research on A1 vs. A2 milk. I wrote an article explaining the A1 vs. A2 milk controversy a year ago. If you’re not familiar with this information, I encourage you to stop here and read the old article to provide a knowledge base. This will help the rest of this article make more sense.

As I began researching more and more about A1, or most regular, store bought milk, I came to the conclusion that our consumption of this milk was probably the cause of our symptoms. This made me even more anxious for the goats to have their babies and start producing enough milk for us to drink. I want to stop here and share some of the information I read as part of my research. Each quote contains a link to the source I found. 

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 I used to think I digested A1 milk as well as the A2 milk, but I have been rethinking this recently. In just the past couple of weeks we switched from milking our A1/A2 Blossom (who is my favorite cow) to our A2/A2 Emma Lou. I have noticed two things:

  1. My lower back has not been as stiff in the mornings.
  2. I used to avoid drinking milk in the evenings because it would make my legs jerky. I have consumed A2/A2 milk in the evening several times and that has not happened. The other night I had symptoms again and thought that maybe it is not the A1 after all. Then I remembered that I had feta cheese on my salad that was made from A1 milk.

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The inflammation from A1 casein causes lymphatic congestion, metabolic suppression, and weight gain. A1 milk can worsen acne, eczema, upper respiratory infections, asthma and allergies.
It causes digestive problems, and not because of the lactose. Because of the massive histamine release from casomorphin.

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My family and I all took cautious sips and waited. [of A2 milk] Amazingly, no symptoms! No mucous or congestion for my husband. No lactose intolerance for my daughter, who couldn’t have even one tablespoon of regular milk. My son, whom we used to tease if he ate dairy today he went to work with his dad tomorrow (as he would become very much like a bear, and not a fuzzy sweet one), did not react to the raw milk at all.
Not only did we not react adversely, but we felt so much better and more satisfied once we started consuming raw milk on a regular basis. My daughter, who in spite of almost no sugar and frequent brushing could not get her cavities under control, has not had one new cavity in the eight years she’s been drinking raw milk.

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When my in-laws moved from India to the United States some 35 years ago, they couldn’t believe the low cost and abundance of our milk—until they developed digestive problems. They’ll now tell you the same thing I’ve heard a lot of immigrants say: American milk will make you sick.

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Milks containing mostly A2 proteins are often said to be better for ‘allergies’ (such as gut, skin rashes, hayfever, cough). There is also research to suggest that A1 beta casein may be associated with serious health conditions such as heart disease, diabetes type 1 and autism.  

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Although it may be inconclusive as to the exact dangers of A1 milk and the resulting BCM7, we feel the precautionary principle should be invoked. Humans have been consuming cow milk for 10,000 years, but A1 milk and the BMC7 that comes with it are a relatively recent development. Only in very modern times with the supremacy of the Holstein breed in US Dairy (accounting for more than 90% of all dairy cows today) has so much A1 milk been consumed. Realistically fluid milk is a minor concern compared to A1 cheese where the lactose carbohydrate and whey protein components have been removed and the casein proteins are further concentrated. Imagine how this has become even worse in our ‘fat is bad’ culture where even the fat is also removed in low and no-fat cheeses leaving only the casein. For example 2 slices of fat-free American singles made from A1 dominant Holstein milk would likely have nearly 3g of A1 beta casein or more than 2.5 times the amount found in a cup of our raw milk.

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I have been dairy free for several months, but decided to give the raw A2 milk a try.  I have been drinking it daily for two weeks now and have actually noticed some improvements in my autoimmune symptoms.  This gives me a lot of hope.  I still consider myself dairy free when we are out and about and I’m not eating cheese or anything pasteurized, but so far the raw A2 milk has done me a body of good (literally!). 

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Interesting, huh? Now that Frank and I have been drinking our raw, fresh, A2 goat milk for around two months, our symptoms are gone. Frank no longer coughs at all. I still get a little drainage sometimes, but it comes when there is a change in the weather. We have also had a tremendous amount of rain this year with constant standing puddles everywhere. 


Can I say conclusively that our symptoms were caused by consuming A1 milk? No. Can I say conclusively that no longer consuming A1 milk alleviated our symptoms? No. I do not have any specific testing or scientific proof, so keep that in mind. But what I can tell you, is that we feel much better and our symptoms are gone. I find this to be unscientifically conclusive based on personal experience. That doesn’t mean everyone will react the same, or react at all. The articles and experiences of the people I quoted above are very good examples of that. If you find this interesting, I would encourage you to read the original article, it has more links that help explain what A1 and A2 milks are, and the differences.


There are so many things that we consume or are exposed to everyday that man has altered or created for ease and profit, that we have no idea of the impact upon our bodies. If you have read here for very long, you know we are trying to eliminate as many chemicals from our bodies as possible, whether ingested or topical. I have no doubt that everything we need to be healthy human beings was created and place here for our use, we just need to figure out how to use them wisely. 

I find this information to be just fascinating. Now, I wonder what we will discover next? There are times we discover new information that makes us wonder why we didn’t see/learn/discover it sooner. There just aren’t enough hours in the day or years of my life to learn everything I would like to learn. I truly hope I am able to continue to learn everyday that I am given. Now, on to the next great adventure.

Until next time – Fern

9 thoughts on “Effects of A1 vs. A2 Milk

  1. I just bought some a2 milk today from the fresh market. It taste pretty good. I have asthma so regular cows milk causes more mucus in the lungs and wheezing. But myenberg goat milk is too expensive. 10 dollars for 64 ounce half gallon and 5 dollars for 32 ounces. The a1 milk is 4.49 for half a gallon compared to the 10 for the same half gallon of goat milk. Half the price of the goat milk. And costco is 10 dollars for 3 half gallons of whole milk or 2% or 1% or skim milk. So 4.49 x 3 is 13.47 versus 10 bucks. So only 3 dollars and 47 cents more. not bad.

  2. It's interesting to hear your family has the same reaction, GJ. Sometimes I wonder about my conclusions, but I really do think the milk was the culprit. Thank you very much for sharing.Fern

  3. This confirms what we have seen in our family also… when we use raw milk from the Amish farmers, we do very well… when we buy \”store\” milk… lots of mucous and allergies. The only raw milk sources are Amish farmer… 100 miles away (we used to travel there often) and another source that is $8 or more. sigh. Thank you for the information.

  4. The first time I read about A1 and A2 milk on Oak Hill Homestead (it's on the blogroll), Emmy, I didn't have any idea what it was. But after I read about it, I was extra glad we have goats. Thank you for your kind words.Fern

  5. Wow! What an interesting discovery! I've always loved raw milk! Goats milk is pretty tasty too! Thank you for your thoughts! Very interesting blog! 🙂 Good job at trying to stay away from chemicals! 🙂

  6. Brenda, I do not have a list of sources. I have read about places in Australia that sell specifically A2 milk, but not in the U.S. You may want to look for small, commercial dairies in your area to see if they specify between A1 and A2 milk, or try to find a goat dairy. I'm sorry to hear about your husband's allergy, that must be difficult. Thank you for the questions.Fern

  7. You're right. It's not. I said, \”This past winter we drank regular store bought, WHOLE milk for about four or five months, because all of the goats were pregnant and not producing milk.\” Whole milk meaning not 1% or 2%, but commercial, whole milk with no fat removed. The milk we currently consume from our goats is raw. We do not pasteurize it. If I in error referred to store bought milk elsewhere in the article as raw, please let me know where it is and I will correct it. Thank you for giving me the opportunity to clarify this for you.Fern

  8. Do you have a list of A2 sources? What breeds of cows and goats are A2? Are there any sources for purchasing A2 dairy for those that can't have their own animals? We are in San Jose, CA and my husband has a casein allergy. It hasn't been pleasant.

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