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Is Duke's Mayo Clean?

📅 Updated February 2026⏱️ 4 min readNEW

TL;DR

You should avoid Duke's Mayonnaise if you are looking for a truly clean condiment. While it famously contains 0g of added sugar, its number one ingredient is inflammatory soybean oil. It also relies on calcium disodium EDTA, a synthetic preservative that clean eaters should skip.

🔑 Key Findings

1

Duke's Real Mayonnaise contains 0g of added sugar, making it unique among major conventional brands.

2

The number one ingredient in all Duke's mayo is soybean oil, a highly refined and inflammatory seed oil.

3

It contains calcium disodium EDTA, a synthetic preservative used to artificially extend shelf life.

4

Duke's "Olive Oil" mayo is a misleading marketing blend that still relies heavily on soybean oil.

The Short Answer

You should avoid Duke's Mayonnaise if you are looking for a truly clean condiment. While it famously contains zero grams of added sugar, its primary ingredient is highly processed soybean oil.

It also contains calcium disodium EDTA, a synthetic preservative used to protect flavor and color. If you want a clean mayonnaise, you need to look for brands using 100% avocado oil with absolutely no artificial additives. Cleanest Mayonnaise

Why This Matters

Mayonnaise is basically an emulsion of oil and eggs, meaning the quality of a mayo depends entirely on the oil it uses. When you eat Duke's, you are consuming spoonfuls of soybean oil, which is heavily processed and high in inflammatory omega-6 fatty acids. Oils In Mayonnaise

Many people switch to Duke's because it doesn't contain the high fructose corn syrup found in Miracle Whip or the added sugar in Hellmann's. But avoiding sugar shouldn't mean settling for chemical preservatives. Is Mayo Bad For You

Even their supposedly healthier alternatives fall short of clean eating standards. Duke's Olive Oil Mayo is a misleading blend that still relies heavily on cheap soybean oil to cut production costs.

What's Actually In Duke's Mayo

  • Soybean Oil — The number one ingredient is a highly refined seed oil that drives omega-6 imbalance and inflammation. Oils In Mayonnaise
  • Eggs — Duke's uses a higher ratio of egg yolks than most commercial brands, which gives it that signature custard-like texture.
  • Natural Flavors — An unregulated umbrella term for proprietary chemical flavor blends that companies aren't required to fully disclose.
  • Calcium Disodium EDTA — A synthetic, petroleum-derived preservative created to keep the oil from going rancid on the grocery store shelf.

What to Look For

Green Flags:

  • 100% Avocado Oil — A heart-healthy, cold-pressed oil that naturally resists oxidation. Cleanest Mayonnaise
  • Organic Eggs — Sourced from pasture-raised chickens without antibiotic exposure.
  • Rosemary Extract — A natural, plant-based antioxidant used to preserve freshness instead of synthetic chemicals.

Red Flags:

  • Soybean or Canola Oil — Cheap, highly refined oils extracted using high heat and chemical solvents.
  • Calcium Disodium EDTA — A lab-made preservative that the FDA keeps on its toxicity watchlist.
  • "Olive Oil Blends" — A marketing trick where companies use mostly cheap seed oil and just a splash of olive oil so they can put it on the front label.

The Best Options

If you love mayo but want to ditch the seed oils and synthetic preservatives, upgrade to these clean alternatives. Cleanest Mayonnaise

BrandProductVerdictWhy
Primal KitchenAvocado Oil MayoMade with 100% avocado oil and zero synthetic preservatives.
Chosen FoodsClassic MayoClean ingredients with organic eggs and pure avocado oil.
Duke'sReal Mayonnaise🚫First ingredient is soybean oil and contains synthetic EDTA.
Hellmann'sReal Mayonnaise🚫Contains both soybean oil and calcium disodium EDTA.

The Bottom Line

1. Ditch the soybean oil. The base of your mayonnaise should be a cold-pressed, healthy fat like avocado oil.

2. Watch out for fake olive oil mayo. Don't be fooled by front-of-package marketing—always check the ingredient list for hidden seed oil blends.

3. Upgrade your condiment shelf. Switch to a clean brand like Primal Kitchen or Chosen Foods to get the creamy texture without the chemical baggage. Primal Kitchen Mayo Review

FAQ

Is Duke's healthier than Hellmann's?

They are both equally bad for clean eating. While Duke's has a slight edge because it contains 0g of sugar compared to Hellmann's 1g per serving, both brands use soybean oil as their primary ingredient and rely on the synthetic preservative calcium disodium EDTA. Hellmanns Vs Dukes

Is Duke's Olive Oil Mayo clean?

No, it is a misleading product. Despite the name on the front of the bottle, the primary ingredient is still soybean oil, with only a small amount of olive oil added for marketing purposes.

Does Duke's Mayo have seed oils?

Yes, soybean oil is the very first ingredient. This highly processed seed oil makes up the vast majority of the product by volume. Oils In Mayonnaise


References (8)
  1. 1. substack.com
  2. 2. dukesmayo.com
  3. 3. fooducate.com
  4. 4. alibaba.com
  5. 5. heb.com
  6. 6. growingalargefamily.com
  7. 7. growingalargefamily.com
  8. 8. reddit.com

🛒 Product Recommendations

Avocado Oil Mayo

Primal Kitchen

Made with 100% avocado oil and zero synthetic preservatives.

Recommended
Classic Mayo

Chosen Foods

Clean ingredients with organic eggs and pure avocado oil.

Recommended
🚫
Real Mayonnaise

Duke's

First ingredient is soybean oil and contains synthetic EDTA.

Avoid

💡 We don't accept payment for recommendations. Some links may be affiliate links.

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