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Are there sneaky additives in your natural cheese? We just removed 3!

written by

Marie Reedell

posted on

December 15, 2023

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Cheesemaking dates back thousands of years. It's one of the earliest foods, made with just milk, naturally occurring cultures, real salt, and stomach for coagulant. But, with the modern push towards industrialization and consistency and food safety, this staple food that nourished humans through the winter has become complicated and somewhat artificial, deviating from its simple and completely natural origins. 

The scary part if that, even the smartest food shoppers don't know it. 

Are there additives in cheese? Yes, there are. But you can't know it just by looking at the label.

Sure, in a highly processed "cheese" like Velveeta, strange non-cheese ingredients like canola oil and food starch and annatto coloring are listed on the label. It's easy to see that an ultra melty block of bright orange Velveeta is not real cheese. It's more of a cheese-like substance.

But, in more old fashioned cheeses found in stores (even organic cheeses), the labels typically have a short list of ingredients: milk, cultures, rennet, and salt. With cheese, it’s required to list the main components of a cheese. But that's not the end of the story. What about the ingredients in the ingredients. It's NOT required to disclose those minute details on the label. 

Here are some things NOT required on cheese labels:

Are synthetic vitamins added to the milk? Milk often has artificial vitamin A and D added to boost the nutrition panel.

What kind of rennet is used? There are animal, plant, and microbial forms of rennet. The exact kind if not required on the label. You can learn more about types of rennet here

What ingredients are in the rennet? Plant and microbial rennet are typically made from and contain GMOs. And even the most natural veal rennets often contain additives like sodium acetate, propylene glycol, or potassium sorbate.

What strains are in the culture? This info is especially important to those who are intolerant or allergic to specific strains of bacteria, yeast, or fungi.

What ingredients are in the culture? All cultures nowadays have maltodextrin as an ingredient. This seems to be sadly unavoidable. Maltodextrin is a sweetener and a carbohydrate with no nutritional value. It's added because the freeze dried cultures need a basic food to jumpstart them back into action. 

What kind of salt is used? Many salts have anti-caking agents such as sodium aluminosilicate or magnesium carbonate added to make it free-flowing. This is starkly different from a sea salt, which is simply dried salt that has formed naturally.

Are any anti-caking agents added to shredded cheese? Common anti-caking agents are potato starch, natamycin, and cellulose.

When I get into the nitty gritty, I always want to pull back a bit and look at the bigger picture. The additives listed above are present in tiny quantities, in trace amounts. That's why the FDA doesn't require them to be disclosed. 

But, my question is, if there's trace amounts of synthetic non-food ingredients in everything I eat, then are they still "trace" amounts? Has there been testing on consistent consumption of these over time? Has there been testing done on how these additives interact with each other in my body? Do we know how long additives stay in your body and where? What are the long term health consequences? I am wary that these questions are being overlooked. I mean, what if the scientific findings were negative? It would affect big food businesses in big and potentially costly ways.

If you're with me on reducing synthetics and toxins and additives whenever possible, then you likely want to dig farther than the label. If you want to know the exact ingredients in your cheese, including any trace additives, you need to ask the company and cross your fingers that they'll do the research required to answer you completely. And that requires looking at the data sheets for every ingredient used. The fact is, you can't know from the label alone.

There's good news. There are some companies out there that are going above and beyond with food transparency, and that includes Miller's Bio Farm. Here's what's super natural about our cheese:

  • We don't add anything to the milk. It's simply milk (and non-homogenized, too). Plus, the milk comes from cows that are 100% grass-fed, genetically tested to be A2/A2, and free of synthetic chemicals.
  • We list the type of rennet used.
  • We list the exact strains used in the culture.
  • We list any trace additives in the "honest disclosure" section of the product description. 
  • We use real Celtic sea salt.
  • We do NOT add any anti-caking agents to our shredded cheese.

If you would like any info that's not listed, please contact us! We are happy to go above and beyond and get you the info you deserve.

And there's even better news! Our cheesemakers recently switched to a beef rennet with no additives at all. This removed 3 additives from many of our cheeses. Hooray! 

Any cheese made after June 2023 has only one additive in it, the maltodextrin in the cheese cultures (gee, I wish we could find an additive-free culture!). 

The only two cheeses made with the older beef rennet include the sharp cheddar (should have additive-free rennet in 2025) and the smoked cheddar (should have additive-free rennet in March 2023).

What do you look for when shopping for cheese? How do you make sure you're avoiding additives and toxins?

I'd love to hear from you. Just comment below (no account required - start typing for the guest option to appear).

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Over the past few months a bunch of people asked us if we tested our bone broth for toxic heavy metals. When we get the same question a lot, we of course look into it. My first question was --- Is there an issue with toxic metals in bone broth? As it turns out, yes, there "can" be an issue! Heavy metals are naturally present in our environment. We need the "good" heavy metals to thrive: iron, zinc, magnesium, copper, etc. But, we can 100% do without the toxic heavy metals: arsenic, cadmium, lead, mercury, etc. Too many toxic heavy metals can lead to a host of pretty awful issues: nervous system damage, cardiovascular issues, cancer, endocrine disruption, kidney damage, and so on. Our body is designed to excrete heavy metals through urine (and a little bit through sweat, hair, and breastmilk too)... but only so much. There's a limit. If you're overloaded, your body will store those heavy metals in your bones, blood, tissues, and organs. Similarly, if an animal is exposed to heavy metals via food, water, air, dust, or soil, those heavy metals accumulate in the bones. Maybe the farm's soil or air is contaminated from a nearby factory. Maybe the pipes for the water has lead solder connecting them. Maybe the feed a farm is buying was grown on contaminated soil or processed on contaminated equipment.  And, of course, a main purpose of bone broth is drawing out as much as possible from the bones. If there are heavy metals in bones, they will make their way into the broth. This is especially true when you pre-soak with apple cider vinegar and simmer for 48 hours to make it thick and gelatinous (like our broth). And that led me to my second question --- Should I be concerned about every bone broth? Where is the fear coming from? Well... it seems it might be a little political. There was a study done in the UK in 2013 that scared a lot of people. It's titled "The Risk of Lead Contamination in Bone Broth Diets". This study found high levels of lead in organic chicken bone broth, which is quite concerning. And, in fact, this one study is still cited in articles written today! Let's dig a little deeper. Let's go farther than the short abstract. Here are the broths tested in the study and their test results for lead:  (9.5 parts per billion): Broth made from tap water plus skin and cartilage(7.01 parts per billion): Broth made from tap water plus bones(2.3 parts per billion): Broth made from tap water plus meat(0.89 parts per billion): Tap water alone cooked for the same amount of time as a control. But, they only used organic chicken from one farm. And, there's zero information about that farm, their practices, the feed, and the broth recipe. Did they use vinegar or wine in the broth? Was the chicken's water contaminated with lead? What was the quality of the feed and the soil? Were the chickens raised indoors or outdoors? So many unanswered questions! All we get is that it was one "organic chicken" that created a lead issue with broth. Another curious thing is that the broth with skin and cartilage contained more lead than the broth made with just bones. Bones are where lead is stored, so why wouldn't the broth made with bones only contain more lead? It's an odd result. Moreover, the abstract of the study specifically called out "bone broth diets" like GAPS and paleo. They even go so far as to write, "In view of the dangers of lead consumption to the human body, we recommend that doctors and nutritionists take the risk of lead contamination into consideration when advising patients about bone broth diets." That's quite curious. Why are they worried about these diets? Are the researchers anti healing through food? Who funded the research? Is it political? My opinion? This study is not comprehensive. It does not speak to all bone broths. But it does cover a potential issue if the water or animals are overloaded with heavy metals. What I glean from this study is that we need more research. We don't need fear to spread and people to stop drinking broth from this one study. Regardless of whether the fear was fabricated or legit, we tested our bone broth anyway. After all, it's always nice to validate that your food choices are as clean as you think. For Miller's, here were my concerns before testing: What if there's mercury in the fishmeal in our chicken feed?What if the soil that our animals live on is contaminated?What is the well water that the broth is made with is contaminated?What if the Celtic sea salt has lots of heavy metals? We got the test results back. I was super excited. But, I was also confused. At face value, it appeared that our bone broth tested NEGATIVE for arsenic, cadmium, lead, and mercury. You can find the test results right here! You'll notice that, for every sample, the results are "<0.01 mg/kg" and "<0.02 mg/kg".  I asked the lab what the "<" means. They said that it indicates their limit of quantitation (LOQ), the lowest concentration that can be accurately tested using the test procedure in that sample type. So the results simply report that none of the metals tested were found in the sample above the specific reporting LOQs. Whether or not they were present below this LOQ is information that is not provided by the test. When talking to the lab, I told them what we needed and assumed that this test would go below a 1 ppb. So, when the results came in, I assumed that a "mg/kg" was the same as a part per billion (ppb). Ummm... that math wasn't write! A "mg/kg" is actually a part per million (ppm). That means that the test we ran had results saying that the broth had less than 0.02 ppm (or 20 ppb) of arsenic and lead. And, it had less than 0.01 ppm (or 10 ppb) of cadmium and mercury. For some reference, the EPA says that less than 15 ppb of lead is safe in drinking water. Not saying that I agree, but it's a good reference point.  These results are good. It means the broth definitely isn't overloaded with toxic heavy metals. But, it's not good enough!!! We need to test again! We really need to a lower LOQ. We need to know the results with an accuracy of as low as 1 ppb. It looks like the lab we sent the original samples to doesn't have an LOQ that low. So here I am on the hunt for a lab to do it again. As soon as I can, I'll send samples in again and paying for more expensive testing to get the info you deserve. Stay tuned! I hope to have the new results in by the end of April 2025. Do you worry about toxic metals (or other junk) in your food? Where have your fears stemmed from? I'd love to hear from you. You can comment below (no account required) or contact us ðŸ˜Š ----- Sources The risk of lead contamination in bone broth dietsBone Broth and Lead Toxicity: Should You Be Concerned?Bone Broth and Lead Contamination: A Very Flawed Study in Medical HypothesesBone Broth, Collagen, and Toxic Metals: A Research Review