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This Is What’s Actually In Your Supplements


Robyn Openshaw - Updated: January 19, 2026 - - This Post May Contain Affiliate Links


Shellack, plastics, heavy metals, petroleum products, and solvents.

All of these are used in the vast majority of the supplements North Americans are buying. Like 99% of them.

And what’s the “nutrient” in your actual supplement? You probably won’t believe the following list. But I’m going to tell you; please feel free to fact-check me:

Vitamin D: the grease from sheep’s wool

Vitamin C: an industrial byproduct of GMO corn (and ascorbic acid isn’t even actually “Vitamin C”--fact-check me by looking it up in PubChem)

Vitamin A: Byproducts of the fish industry, or processed palm oil, and acetone (nail polish remover) (this is not the “Vitamin A” found in food at all)

Vitamin B1: coal tar, ammonia and acetone

Vitamin B2: GMO lab-made bacteria, acetic acid, and acetone

Vitamin B3: coal tar, ammonia, formaldehyde

Vitamin B5 (“niacin”): isobutyraldehyde, formaldehyde, often alcohol (and you wonder why people turn red, which is in no way a “detox”)

Vitamin B6: petroleum ester, hydrochloric acid, formaldehyde

Vitamin B7: fumaric acid

Vitamin B9: petroleum products, chemical acids and acetylene (and it’s folic acid, not the folate found in food, not the same at all)

Vitamin B12: cobalt (heavy metal) and cyanide

Choline: ethylene, ammonia, hydrochloric acid

Vitamin E: processed oils, rancid long before you use them, and several chemicals

Vitamin K: coal tar, GMO hydrogenated soybean oil, hydrochloric acid, nickel (heavy metal)

Don’t believe me? This isn’t easy to find by googling.

For the book we are writing, we are struggling to get the “straight skinny” on some products.

For instance, I cannot get a single “vegan Vitamin D” company to tell me how they make their product, and whether solvents and other chemicals are involved. The base is some kind of byproduct of algae.

It seems to me that if they’re not using solvents and heavy metals as that entire list is, above–they’d tell me so.

Another reason maybe they don’t write me back is that there are so many companies involved in the supply chain. From the coal-tar supplier, to the manufacturer, to the transport companies, the distribution companies, the private-labeling companies, and the marketers.

Would you eat an orange if it was passed around to 8 different companies before it finally made it to you, 6 months to two years later? No? Well, think of the preservatives and stabilizers that must be used, to keep those pills from going bad like an orange would.

But you CAN learn this stuff–please do fact-check me. You will not learn this stuff from your functional medicine doctor.

How many doctors do you think research all the companies who touched the product she sells, and what they did to the product?

Some of you will send this to your FMD, and I will get angry messages or comments below from them.

But in all fairness, it’s not that they’re bad people scamming you; they just literally don’t know what I’m telling you here. They trust these billion-dollar companies who put your doctor’s labels on customized orders for them.

Because there are dozens of companies in between your practitioner, and the synthetic product shipped out in large vats mostly from India and China.

Your functional medicine doc just bought the marketing pitch from some billion-dollar company, and put his label on it. (Or not. Maybe he just buys wholesale from Standard Process, where he gets a great markup / profit margin on a cheap product.)

It’s what monetizes. Your $129 office visit might be once a year, but your “Vitamin D” autoship is recurring revenue. Your practitioner isn’t entirely to blame! She also feels compelled to provide what patients want. Who wants to make diet and lifestyle change, when you could take several pills instead, in one big gulp?

Your functional medicine doc is under pressure. Her patients actually WANT to leave the clinic with $800 of Hopium, even if they might gripe about the price tag.

Some people are reading this and getting really mad. Because if they take it, they want to believe it’s good. (Hey, where have we seen that before? 2021, anyone?)

I wish I weren’t telling the truth here. But I am. I haven’t written the manifesto here, only a few pieces of the puzzle–but I’m working on it. And yes, it will have references.

This blog post is just the “Cliffs Notes” from the BOOK on what’s really in your supplements.

Why? These products are made and distributed, as raw materials, often assembled in the U.S. but made mostly in labs in India and China, for pharmaceutical companies. The most powerful and lucrative industry on Earth.

Chinese and Indian companies then ship raw materials to middlemen, who put labels on 5 bottles or 100 bottles for your chiropractor or naturopath. As well as larger companies that sell via influencers’ and marketers’ affiliate links.

Pharma knew by the 90’s there would likely be more money in “nutraceuticals” than in drugs, by the 21st century.

My last publisher was one of the “big six” publishers in the U.S. and I got a large six-figure advance.

To bring this book to you, I’ll be financing and publishing this myself. There’s just no way a publisher would agree to put this book out there.

You’ve been living in the 21st century for a quarter of a decade now, since supplements became possibly even more lucrative for manufacturers and middlemen than drugs are.

What you may THINK of as “natural,” likely is not in any way natural.

The ingredients of the “vitamins” in my list above? They and others made with byproducts of many industries, sold to you as “nutrients,” comprise over 99% of the “supplements” sold in North America today.

Read them again, above, and then imagine what you’re actually taking in a “B Complex” blend, or a “multivitamin!”

Sit and think for one minute about how an orange has dozens of known nutrients in it.

And ask yourself, how did they isolate just ONE of those nutrients, and put it in a pill, with a shelf life of a couple years?

(Remember, the raw materials have their own shelf life. If you put your raw material on the last day of its two-year shelf life, you’re golden. You can still give your final product a two-year expiration date, or none at all.)

The whole concept is actually ludicrous on its face, but in our high-trust society, most of us have just never thought about that.

Petrochemicals, solvents, shellac, heavy metals, plastics–they’re in 99% of the supplements you thought were natural–because, well, someone you admire promotes them, and because you didn’t get a prescription to buy them, so they must be “natural,” then, right?

That is some very flawed thinking. I used to think the same. Before I really thought about it, and started researching.

Dried, organic, wildcrafted herbs made by a couple of holistic grandmas with a small farm? That is so 1970.

They still exist, even if they’re endangered species. The list above and “nutraceuticals” like them are only 99%+ of the supplements you may be buying on Amazon, Vitacost, or from your practitioner.

A really good supplement and a really good privately owned company who deeply cares about the same quality you do–is beyond rare. (In case you’ve ever wondered why, after 18 years, GreenSmoothieGirl has only two supplements–well, now you know.)

Billion-dollar companies sit around boardrooms and on the manufacturing floor trying to figure out how to minimize costs to improve profit margin. The little clinic you go to? They didn’t make their own product. They bought it from one of the huge companies.

Ever wonder why your “holistic” friends taking 40 pills a day aren’t healthier than your friends on 5 prescription drugs? (Unless they’re also eating a lot healthier. Sometimes they are.)

But take note of how our friends taking the 40 “natural” pills have persistent health problems despite very meticulously trying to cover all their bases with “supplements.”

They tend to be highly educated, they read a lot, and they’re very serious about their health. That’s what’s so sad about this whole topic.

I wonder how much healthier they’d be if they WEREN’T eating handfuls of petrochemicals and metals and plastics! They’d also have more income to spend on better things.

NAC? DMSO? Melatonin? Fish oil? Feel free to write GreenSmoothieGirl or me personally on Facebook with a supplement if you want to learn more about what’s REALLY in it. (Spoiler alert: all of those are just as problematic.)

While I won’t be able to answer all, I’ll read them all, and we are researching as many products as we can in our work for this book. People send me links to products they have questions about, every day.

And I am deeply sorry that I cannot research or know every brand. Just be aware that for every order of 40-gallon ascorbic acid drums shipped out of China, there are tens of thousands of small brands eventually putting their label on it.

Your “holistic” practitioner isn’t a scam artist; she just literally doesn’t know.

Well, this might get me kicked right off Substack. I’m calling out the elephant in the room. This won’t be popular with pharma, with functional medicine, or with people who had some short-term result from some pill.

(We’ll cover that topic too: how a pill that gets a short-term result in a symptom or lab number, even if it doesn’t actually help you, is the “holy grail” for manufacturers and marketers. Most don’t even get a short-term result.)

I know this wasn’t a comprehensive or well documented piece, my friends. This is a quick summary and an op-ed piece. I know this leaves you wanting more.

This Is Just the Beginning

What you’ve read here is only a fraction of what we’ve uncovered.

In my book, Take Daily, I document – step by step – how the modern supplement industry actually works, where “nutrients” really come from, and why so many well-meaning people are unknowingly flooding their bodies with petrochemicals, solvents, and industrial byproducts.

This book isn’t fear-based. It’s fact-based.

If you take supplements – or have ever wondered why they didn’t deliver the health you were promised – you need this information.

Get Take Daily: The Full Investigation into What’s Really in Your Supplements

Think your supplements are clean and natural? You might be shocked. Discover what's really in them in my new book. Learn more

PS: If you are convinced about synthetic vitamins, but not convinced you get enough from food, a company called Pure Synergy uses (see ingredient lists) only whole-food and superfood ingredients high in the nutrient on the bottle. A rare company uses good ingredients, but shelf life will be short.

Photograph of Robyn Openshaw, founder of Green Smoothie GirlRobyn Openshaw, MSW, is the bestselling author of The Green Smoothies Diet, 12 Steps to Whole Foods, and 2017’s #1 Amazon Bestseller and USA Today Bestseller, Vibe. Learn more about how to make the journey painless, from the nutrient-scarce Standard American Diet, to a whole-foods diet, in her free video masterclass 12 Steps to Whole Foods.

Disclosure: This post may contain affiliate links that help support the GSG mission without costing you extra. I recommend only companies and products that I use myself.

This is what's actually in your supplements

Posted in: High-Vibe Living, Lifestyle, Mind/Body Connection, Natural Products, Preventive Care, Stress Management, Uncategorized

22 thoughts on “This Is What’s Actually In Your Supplements”

Leave a Comment
  1. Andrea says:

    Id like to know more about NAC. I've been using it to try and raise my glutathione levels but potentially I shouldn't be?

  2. Neil Morgan says:

    If what you’re saying is true, why is it that these supplements are still allowed to be available to the consumers in the US?
    Who do we believe these days? One day someone is telling us that this or that is good for us, the next day they’re saying it’s not. SMH

    1. Robyn Openshaw says:

      That's because you're listening to marketers. They can't chase down and punish everyone making claims (though they'd like to). And, remember, it's the highly protected PHARMA complex that is making the supplements in the first place. Even if your doctor or an influencer you trust has their label on it.

      1. Libby says:

        Can you give any insights into Magnesium?

    2. Kathleen says:

      Neil- our government (FDA, etc) does not protect us, doesn't even enforce the existing laws when it comes to safe levels of toxins. I get news every day from the Children's Health Defense disclosing problems that our regular media won't report. We need to find sources of information that we trust, that aren't bought by big corporations that just want profit. I'm grateful for Robyn and people like her with integrity that can't be corrupted.

  3. Jon says:

    It's so nice of you to inform us of the truth, but I would be very cautious should some organizations or persons might try to harm you or your family for telling the truth . Profits are very important to them as you know. Facebook is an evil data collecting website; surprise that you still are using them. Good luck and try to be more safety minded.

    1. Dale Kristina Valiukas says:

      I definitely agree.

    2. Robyn Openshaw says:

      Hey Jon, I'm not going to live my life cowering in fear and staying silent because somebody might do something to me. Too many are doing that, and it's our #1 problem–the silence and apathy and cowardice of the people.

      I feel a responsibility since I brought four other human beings into this world. Thank you for your concern though.

  4. Dale Kristina Valiukas says:

    Thanks Robyn, I've always been on the fence about vitamins and supplements. I drink only teas with herbs in them and that even gets me nervous sometimes. The world is a wicked place. I love to listen to you.

  5. Sharon Ray says:

    I am looking forward to your book! Thank you for stepping out.

  6. Martha Bellows says:

    Will you include recommendations on Ancient Nutrition supplements?
    Why do they make a big hype about COLLAGEN? They seem to combine it with almost everything!!
    TY

    1. Robyn Openshaw says:

      Because collagen is made super cheaply from the ground up gristle, ligaments, skin, bones, etc of animals, which would otherwise have to be disposed of, which makes a waste product a profit center rather than a cost center for a company.

      Basically, it's super cheap Jello in a pill, and it does you no good, but you can find plenty of manipulated "studies" that help the marketers sell you chicken skin and tendons as if they'll give you pretty skin and healthy tendons and skin.

      I could write a whole blog post about this (I think I have, actually, somewhere) but suffice it to say it's been one of the most successful of all the campaigns to sell a waste product of industry, as a supplement.

      Fact is, the #1 protein in your body is collagen, you have a TON of it, and eating cheap processed gelatin just isn't building strong skin and joints and ligaments.

      I don't expect that you will believe me, because Doctor X says it's good, and quotes Study Y, and so it's only those who have the critical thinking skills who will go past that:

      to consider the very fundamental fact that your body has to BREAK DOWN the collagen you eat (in a pill) into its component parts, and build its own collagen. Vitamin C, zinc, lots of others.

      It of course makes no sense that the ground up gristle and skin of animals just goes straight to your OWN ligaments and skin and becomes ligaments and skin.

      That's just not how it works, but the doctor who recommends them to you somehow overlooks this, as simple as it is. THEY fall for the marketing just like YOU, the consumer, does.

      Honestly some of the "collagen" supplements are the synthetic, petroleum-based crappy products I wrote about here using the B vitamins and a few others as examples.

      For instance, putting "ascorbic acid" in and pretending that's Vitamin C. (An important building block of your body making collagen.)

      The supplement industry is as rife with corruption and fakery as any. They're as bad as pharma, big food, the defense contracting industry charging $90K for a bag of bolts … it's just gotten extremely fraudulent and corrupt.

  7. Cheryl says:

    Whoa! Can't wait for you to publish this book! My eyes popped at your mention of Standard Process. I thought they were one of the gold standards. I hope you will also be covering Usana, Cardio-Miracle and Life Extension products. Thanks for taking on this work.
    Also, if muscle testing indicates your body would "like" a given supplement, is that a bit of assurance your body recognizes there's more benefit than danger to that item?

  8. Alimae says:

    This all resonates Robyn. I have been such a sucker for the next supplement and my health has not improved over the past 10 years, but I have spent A LOT of money. It's highly frustrating and I am ready to spend all that money on food alone. I want to get out of the delusion that there is some "magic pill" and support local farmers instead of a broken system of injustice.

  9. linda says:

    We need to all learn more about herbs and start growing them in our garden. Majority Wildcraft offers herb blend that have high vitamin and mineral content. So it is like a natural multivitamins. We need to learn from the last few remaining those grandmas.

  10. Beth says:

    Thank you for all you do!! Looking forward to the book!!

    I would like to request you look into Dr. Livingood's products widely sold on his site and Amazon. Id be super curious if his are as good as he claims. Hoping so as I have family that follow him.

  11. Jorge says:

    Robyn, Your research information in capsule is eye and mind opening for me. A question, are you squinted with these practitioners and their supplements they sell?
    Dr. Keith Scott-Mumby
    Dr. Daniel Nuzum
    Dr. Steven Gundry
    Dr Joseph Mercola
    Dr Eric Zielinski
    Tony Horton with his "Your Power Life".

    I will appreciate your comment and advise about their products,
    Thanks in advance.

    Jorge Alcon

    1. Carlotti de Jager says:

      Nuzum, Gundry, Mercola and Zielinski are names of people I have followed for years. Have not bought their products. Now I wonder about the Oligo line of supplements I have been taking from Melaleuca. ????

  12. Terri says:

    Please include
    Mary Ruths
    Seeking Health
    Gary Brecka’s supplement line in your book.
    Thanks!

  13. Fred says:

    Oh my, I don't know what to think. I spend so much money on supplements. And many of which were mentioned here. Of course, I eat a very healthy and clean diet but I've been wondering why I'm not feeling any better. A couple months ago I suspected supplements and drastically cut them way back. Are there any companies that sell vitamins and supplements that are safe. Could you name them?

  14. Tammy Weaver says:

    I have every confidence in Earthley Wellness and Dr. Amy Yasko. I trust Dr. Amy Myers, Dr. Daniel Amen and Perfect Supplements. I am curious as to their responses to your inquires. They can't all be bad based on reviews left by customers. If people are noting changes after taking them, then a whole lot of people are having a placebo effect or the supplements are actually doing what they are meant to do.

  15. Mark says:

    I will only buy the book if it reads like a ConsumerLab.com or Mamavation when it comes to product third-party lab testing. I would happily buy any book or video that tells me which brands of foods and supplements are safe to buy that are sitting on our Australian supermarket shelves or health food stores. I know that's a huge ask. Here in Australia, I am always buying Woolworths Macro organic fruit and vegetables. I don't know if buying products from this big corporation is a good idea. Despite it being organic, they could still be cutting corners and allowing heavy metals to flourish in all their foods. For the sake of convenience, I suppose that is the risk I have to take. It's either that or I send it off to a lab. The way things are playing out with my health, I can see that sooner or later I am going to reach a breaking point which forces me to get every food and supplement I put in my body lab tested for purity. Because I cannot find a single Australian ConsumerLab.com or Mamavation website that caters to lab testing of Australian foods and supplements, and because these gov-mental psychopaths are not here to help us, but are happy to continue on with the poisoning of humanity, then I'm left with no choice but to spend thousands of dollars getting my own foods and supplements tested. I should never have to do this, but I suppose this is the kind of toxic era that we live in.

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