Useful and sharable resources for animal-based foods... that aren't scary. LEARN MORE.

What is A2/A2 milk and why it’s better for your body

written by

Marie Reedell

posted on

October 4, 2019

There are an array of confusing and subjective food labels in stores - Prime, Choice or Select beef, Grade A or Grade B maple syrup, free range or pastured eggs, etc. These labels are all based on a human making a subjective assessment of the product. The lines that divide each are blurry.

When it comes to milk, the A2/A2 label is objective and scientific

A2/A2 milk is milk that contains 100% A2 beta-casein protein. It’s a genetic thing. The farmer takes a cow’s hair sample and sends it to a lab. The labs sends back results that show whether the cow produces 100% A2/A2 milk, a mix of A1/A2 milk, or 100% A1/A1 milk. It’s objective. The line is clear.

It took a couple of years and was expensive for our farmer to convert his herd to 100% A2/A2 cows. It’s a pretty special farm with a pretty special farmer.

So why should we care? Well, modern American milk is unnatural. We’re not supposed to digest anything other than A2 beta-casein protein.

All mammals - humans, sheep, goats, dogs, camels, mice, whales, lions, platypuses, etc - produce milk that contains 100% A2 beta-casein protein. As mammals, it’s what we’re born to digest. It’s natural.

However, the situation with cows is unique. A few thousand years ago, there was a genetic mutation in cows in Europe (this was probably due to the stress of farming becoming industrialized). This mutation made cows produce a new type of beta-casein protein - A1. 

Those European cows made their way to the United States. Now, any milk you buy in an American supermarket will be A1/A2 - organic or not. 

Evolution is a long term process. A few thousand years in not enough time for humans or cows to evolve to digest A1 protein. We’d need a million years for that.

Will it hurt me if I drink A1/A2 milk? Maybe, maybe not.

Every body is different. It seems that some bodies can handle the A1 beta-casein protein, some cannot tolerate it at all, and some don’t have obvious allergy-like symptoms but A1 is the underlying cause of chronic issues.

Cows in Asia - the ones with the hump on their back - were not affected by a genetic mutation. They all produce 100% A2/A2 milk. I’ve heard many stories of people moving from Asia to the United States and developing really chronic issues that, after many doctors hypotheses were debunked, were resolved by switching to A2/A2 milk.

Is there any science behind this? Yes, there is. The research so far shows that consuming A1 beta-casein protein can cause a variety of issues.

Your body needs protein. Enzymes break protein down into amino acids, which are then absorbed into your bloodstream and used to build and repair things in your body like your skin and muscles. Super important.

The A1 beta-casein protein breaks down into a peptide called BCM7. As stated in an article in the Indian Journal of Endocrinology and Metabolism, “BCM7 is suggested to be associated as a risk factor for human health hazards as it can potentially affect numerous opioid receptors in the nervous, endocrine and immune system.” 

The list of chronic health issues related to BCM7 is very long and very varied. It includes type-1 diabetes, heart disease, SIDS, autism, schizophrenia, and gastrointestinal problems.

A2/A2 milk has nothing to do with lactose intolerance.

Lactose intolerance is when the body either does not produce or does not produce enough lactase. Lactase is the enzyme the body uses to breakdown lactose, the sugar in milk. Raw milk naturally has beneficial microbes that help your body produce lactase, so that may be the solution for folks whose bodies produce little lactase. But A2/A2 milk will not help. 

That being said, if you have a general intolerance to milk, A2/A2 could be the solution.

It’s important to note that more research is needed on the A1/A2 debate.

Compared to other medical topics, the research on A2/A2 milk is scant. We need more! We need large scale, blinded and controlled studies. 

What we do have is lots of anecdotal stories of people who cannot tolerate A1/A2 milk but do just fine with 100% A2/A2 milk.

So what do you think? Do you notice a difference when drinking A2/A2 milk? Why do you choose A2/A2?


SHOP A2/A2 DAIRY HERE


Raw Dairy

Health and Nutrition

More from the blog

Useful and sharable resources for animal-based foods... that aren't scary

When did you go down the rabbit hole and learn about the benefits of eating clean, animal-based foods? For me, it was when I was pregnant with my first child. I thought I was eating healthfully... but then my eyes were opened to so much more than is taught in health class and is accepted as "common knowledge" of the time. And, come on, the internet can be such a scary place to learn about food. Eggs definitely give you high cholesterol. Drinking raw milk will definitely kill you. Lucky Charms are definitely healthier than grass-fed beef(anyone else see that NIH study about the new Food Compass rating system? Ugh). Who funds this stuff?But once you find trusted sources (you know, the ones backed with unbiased research and typically not served to you by Google), you can't unlearn it. And, the more you learn, the more you want to learn. And, once you gain your food confidence, you want to share it, too!Heck, if you're daring, maybe you even want to convert your friends that love fast food, are always on the latest trendy diet, or are vegan (gasp!).Diet can strangely be a tough topic of conversation. After all, what you choose to put in your body is such a personal choice. And once someone makes that choice, they often have strong convictions that are hard to break. In my personal experience, anything contrary to someone's reality will be received as a "conspiracy". But, hey, that doesn't mean you shouldn't start the conversation if you want to!And an important note: At Miller's Bio Farm, we support each person's food choices! It's something that you and only you can decide. And we hope that you transfer that same respect to others, even if your viewpoints differ 😊So, this week, I started an amazing resource for you (and maybe even your friends) ----- ANIMAL-BASED RESOURCE LIST MILLER'S BIO FARM BLOGOur blog is full of great animal-based articles. However, they're mostly about farming practices, the nitty gritty on food ingredients, and cooking techniques... not necessarily health (as those claims can be risky for a company to make). Here's a quick list of our most popular blog posts about health: The PUFA Predicament: A Look Into Healthy FatsWhat is milk kefir? How's it made? What are the health benefits?The Art of Fermentation: Exploring the Health Benefits of All-Natural SalamiWhat is bioavailability? How to get what you need to be healthy.How are primal carnivore urges affected when you're surrounded by tons of food?Heart health and dairy fat are linked in a very good way. WEBSITES Realmilk.com (raw milk specific)Raw Milk Institute (raw milk specific)Weston A. Price Foundation Global Food JusticeDr. Kiltz SOCIAL MEDIA Lindasy - @animalbased bae (IG)Rachael Elizabeth - @ribeyerach (IG)Sustainable Dish (IG and FB)Weston A Price Foundation (IG and FB)Chris Irvin - @theketologist (IG)Dr. Gabeiwlle Lyon (IG)Dr. Bill Shindler (IG)Dr. Paul Saladino (IG)Nourishing Our Children (IG and FB)Strong Sistas (IG)Ancestral Health Society (FB)Joey Jurgovan - @joeysorts (IG)Lineage Provisions - @lineageprovisions (IG)Olivia Robertson-Moe, NTP - @revolveprimalhealth (IG)Judy Cho - @nutritionwithjudy (IG)Liz Haselmayer - @homegrown_education (IG)The Primal Bod - @theprimalbody (IG)Lily Nichols RDN - @lilynicholsrdn (IG)Animal Based Nutrition - @freddie_alves (IG) PODCASTS The Regaissance Podcast BOOKS Nourishing Traditions CookbookThe Untold Story of Raw MilkPottinger's Cats: A Study in NutritionEat Like a HumanThe Carnivore CodeThe Plant ParadoxSoil, Grass, and CancerThe Big Fat Surprise ----- Ok, I know I'm missing a lot here. Please, help! What animal-based, real food resources do you love? Have any suggestions to add to our list? Comment below (no account required - start typing for the guest option to appear) or contact us!

Separating cream at home. Here are some options and advice for success.

Want to separate the cream from your non-homogenized milk at home? Maybe you just want to have some fun in the kitchen. Maybe you want to learn about how to make homemade dairy products at home, like the olden days. Or, maybe you want more self sufficiency (which can sometimes be more affordable, too) and make as much as you can with your own two hands. Here are the 4 most common ways to separate cream at home, with tips for success.