HeraSphere #48: Organic Isn't Always Safe

Dear friends,

I saw a post from Dr. Mark Hyman last week with a simple instruction: discard these immediately, it's the easiest act of love you can do for someone you love. The image below, compiled by Vani Hari, aka The Food Babe, showed a dozen common products next to a citation for a French study on food additives and cancer risk.

Three of those products pictured were in my family’s kitchen. My husband's Fairlife protein shake. The Ben & Jerry's I'd always considered the more responsible pint. My mother-in-law's Coffee Mate French Vanilla creamer.

Instead of just clearing the shelf, I went and read the actual study. Here's what I found.

The TL;DR

• E471 (mono- and diglycerides of fatty acids) and carrageenan are both linked to increased cancer risk in a 92,000-person French cohort published in PLOS Medicine.

• The stronger finding isn't the one getting attention. E471 is tied to overall cancer, breast cancer, and prostate cancer. Carrageenan's signal is breast-cancer-specific, which raises a real question about what "no data for men" actually means.

• These aren't fringe products. Fairlife, Ben & Jerry's, and Coffee Mate all contain one or both, sitting inside things marketed as clean, premium, or simple.

• The organic label won't save you here. Both ingredients are legally allowed in USDA-certified organic food, so "organic" and "carrageenan-free" are two different claims.

• We made some changes. What got swapped, and what got a warning to family.

E471: The Emulsifier We Can’t Escape

• Mono- and diglycerides of fatty acids, listed as E471, are emulsifiers. Their job is keeping fat and water from separating in things like ice cream, coffee creamer, and baked goods. Without them, your creamer would split into an oily layer within a day.

• Mono- and diglycerides are actually naturally produced in your gut when it breaks down fat, glycerol plus fatty acids, the same building blocks in any oil you cook with. Produced at scale, manufacturers recreate that same molecule, usually starting with soybean or palm oil, and add it directly to processed food.

• Researchers followed 92,000 adults for an average of 6.7 years and found E471 intake was linked to a 15% higher overall cancer risk, a 24% higher breast cancer risk, and a 46% higher prostate cancer risk.

• Check labels for the actual ingredient name, not the word "emulsifier" alone. Most products list several different emulsifiers, and E471 is often the first one on the line.

Carrageenan: The One With a Gender Question

• Carrageenan (pronounced ker-ah-ghee-nen) is a thickener pulled from red seaweed, used to keep plant milks, deli meats, and dairy products from separating or turning watery. It shows up on labels as carrageenan, E407, or occasionally "processed eucheuma seaweed."

• "Seaweed-derived" sounds reassuring, but it's not the same claim as safe. There's a degraded version of carrageenan, made with acid and heat instead of the alkaline process used for food, that's classified as a possible carcinogen and banned from food entirely. Food-grade carrageenan is supposed to be a different, safer molecule. But a 2024 human study found that even the food-grade version weakened the gut lining and triggered inflammation in real tissue.

• The PLOS study found total carrageenan intake linked to a 32% higher risk of breast cancer. No comparable association showed up for prostate cancer.

• Even though the study did not find linkage to prostate cancer, it doesn’t mean men should ignore this. My more detailed read is different: this cohort was 79% female, so there simply wasn't a large enough sample of men to detect a male signal either way. No data isn't the same as a clean bill of health. I told my husband: if it causes breast cancer in women, it can’t be good for men either.

Organic Doesn’t Protect You

• Shockingly, both E471 and carrageenan are legally allowed in USDA-certified organic food. They both appear on the USDA's National List of approved substances for organic handling, meaning a product can carry the organic seal and still contain either one.

• This isn't a loophole exactly. The National List exists because some processing aids are considered necessary even in organic products, and both of these ingredients cleared that bar years ago.

• The new learning for me: "organic" answers a different question than "does this contain carrageenan or E471." Organic certification is about how an ingredient was farmed and processed, not a guarantee that every additive in the final product is one you'd choose to avoid.

• If avoiding these two ingredients matters to you, don’t just rely on the organic label. You still have to read the ingredient panel, on organic and conventional products alike.

What My Family Consumed From the List

• Coffee Mate French Vanilla contains both E471 and carrageenan in the same bottle, the only product in that hit on both ingredients at once. It's my mother-in-law's daily creamer.

• Fairlife's protein shakes contain carrageenan, used to keep the ultra-filtered milk protein from separating. My husband just started drinking this every day.

• Ben & Jerry's uses carrageenan across its classic pint lineup to slow ice crystal formation during shipping and storage, the same reason it's such reliably smooth ice cream.

• These two ingredients are structural workhorses in plant-based milks, deli meats, baked goods, and most protein shakes on the market, which means the smarter move is checking whichever version of these categories is already in your own kitchen.

• None of these are obscure or off-brand products. They're the ones people reach for specifically because they feel like the better choice.

Other Ingredients Worth Knowing

• Red 3 (erythrosine): Banned by the FDA in January 2025 under the Delaney Clause, a law that prohibits any additive shown to cause cancer in animals, no dose threshold required. It had already been banned from cosmetics since 1990 for the same reason. Found in candy, cake mixes, and frosting. However, manufacturers have until 2027 to reformulate.

• Potassium bromate: Banned in the EU, UK, Canada, and Brazil. Listed as a carcinogen under California's Proposition 65 since 1991. Used in some flours and breads to strengthen dough.

• BHA: Under active FDA safety review as of February 2026, based on long-standing concerns about cancer risk. Found in cured meats and some cereals.

• Azodicarbonamide (ADA): Under active FDA review as of May 2026. Already banned in the EU since 2005. Used as a bleaching and dough-conditioning agent in bread, though most major U.S. bakers have already voluntarily dropped it.

• Check out the FDA’s List of Select Chemicals In the Food Supply under FDA review if you want to check on other ingredients to monitor.

I won’t be buying Ben & Jerrys in the near future - even though I had previously considered it a cleaner ice cream and love the do-good mission of the brand. My husband is actively shopping for a new protein shake - unfortunately most of the packaged protein drinks contain carrageenan. I will warn my mother-in-law about her creamer even though her actual daily exposure is probably small. There's no upside to knowingly choosing an avoidable risk, even a small one.

I've always been a label reader, but I thought organic was safe. I'm reading them more carefully now, looking for two specific ingredient names instead of just scanning for sugar, fiber, protein and nutrients.

Here is to the fine print,
Lilly

PS — If you have a friend who drinks ready-made protein shakes and has never once read the ingredients, forward this her way. The ingredient list matters more than the protein count on the front.

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Note: While I love diving deep into research and sharing what I've learned about women's health and wellness, I want to be crystal clear: I'm a passionate health advocate and researcher, not a medical professional. Think of me as your well-informed friend who does extensive homework – but not your doctor.

Everything I share in HeraSphere comes from careful research and personal experience, but it's meant to inform and inspire, not to diagnose or treat any medical conditions. Your body is uniquely yours, and what works for one person might not work for another. Always consult your healthcare provider before making significant changes to your diet, exercise routine, or wellness practices, especially if you have underlying health conditions or take medications.

ICYMI, here are a few past issues that you may enjoy: