The authenticity problem

The avocado oil authenticity problem moved beyond 
the bottle.

For years, the conversation about avocado oil authenticity issues has been about what’s in the bottle of avocado oil. New research from UC Davis suggests that was only the beginning.

 

The latest study expands the scope past bottled oil and into finished products that market avocado oil as a premium ingredient: chips, mayonnaises and salad dressings. The implication is significant: the authenticity question may run through the entire avocado-oil ecosystem, not just the products sold on the oil shelf. The issue did not stop at the bottle.

HOW WE GOT HERE

This isn't a new concern. It's a deepening one.

2020

82%

OF BOTTLED AVOCADO OILS WERE RANCID OR ADULTERATED

The first warning

An independent UC Davis lab tested branded avocado oil bottles sold across the U.S. 82% were rancid or adulterated, some labeled "pure" but were nearly 100% soybean oil. 

2023

70%

OF PRIVATE LABEL AVOCADO OILS WERE RANCID OR ADULTERATED

Not a fluke

UC Davis tested again, this time private label avocado oils across the U.S. and Canada. Nearly 70% were rancid or adulterated.

2026 | New products, same adulteration

93%

of Chips labeled “Made with Avocado Oil” were adulterated

100%

of salad dressings and U.S. mayos labeled "Made with Avocado Oil" failed purity testing

Beyond the bottle

UC Davis tested finished products sold on an avocado oil claim: mayo, dressings, chips, snacks. More than 93% of chips labeled as made with "100% pure avocado oil" were found to be adulterated. Every U.S. mayonnaise and salad dressing labeled as made with "100% pure avocado oil" also failed purity testing. Our retail brand Marianne's was the benchmark for 100% pure in the study, the one that every brand was measured against.

Why did we get here?

The bigger the price gap, the bigger the incentive to fake it. 

AVOCADO OIL COSTS

more than everyday seed oils

vs. canola, sunflower or safflower

Avocado oil is not cheap to make. It costs four times as much to produce as everyday oils like canola, sunflower or safflower, which is exactly why people are willing to pay a premium for it.

 

That premium is deserved: when one ingredient costs several times more than the oils sitting right next to it, there’s a strong financial incentive to quietly swap in something cheaper and sell it at the higher price. The economics explain why. Pure conventional avocado oil costs $4–5 per pound. Seed oils cost $.50-$1.50. The label premium is real; the oil often isn’t.

Why this matters for brands, not just suppliers

For a food manufacturer, avocado oil authenticity is a brand-protection issue.

Many brands build their positioning on claims like “Made with Avocado Oil” or “100% Avocado Oil.” Those claims support premium pricing, differentiation, and consumer trust, but they are only as strong as the authenticity of the oil behind them.

 

If the underlying ingredient isn’t authentic, the exposure isn’t just a quality miss, it’s a business risk on three fronts.

01

Legally

False purity claims invite regulatory scrutiny and class-action litigation.

02

Financially

Brands caught misleading consumers lose the trust, the premium, and the revenue those claims were built on.

03

Reputationally

Brand reputation takes years to build and minutes to ruin.

Real purity isn’t claimed. It’s verified.

CODEX CXS 210-1999

We run the full check. Ask your supplier if they do.

In November 2024, the category finally got a rulebook. CODEX added avocado oil to its standard (CXS 210-1999) and defined purity across three families of markers: fatty acids, sterols and tocopherols. That’s a real step forward: for the first time, there’s an agreed definition of what authentic avocado oil should look like.

 

The problem isn’t the standard. It’s that most producers only run part of it. Think of it as three checks, not one, and here’s why so many stop at the first:

 

The two tests that actually expose adulteration, sterols and tocopherols, are exactly the two most producers leave out. 
A product can pass a fatty-acid-only test, carry a “100% pure” claim, and still be outside the standard on the markers that matter.  Therefore, the only reliable way to catch adulteration is to test all three families and read the full profile. 

MOST SUPPLIERS

1/3

Fatty acid profile
Sterol composition
Tocopherol levels

Oil can be adulterated by up to 40% and still pass.

ADAMS GROUP

3/3

Fatty acid profile TESTED IN-HOUSE
Sterol composition THIRD-PARTY TESTED
Tocopherol levels THIRD-PARTY TESTED

The full CODEX picture, verified lot by lot.

Fatty acids

Easy to manipulate

Inexpensive and easy to run in-house, so it's the default test across the industry. But high-oleic seed oils can be blended in and still land inside avocado's expected fatty-acid range, so a diluted oil can pass and look authentic.

Sterols

Hard to manipulate

Dilute the oil and campesterol, β-sitosterol and the delta-7 markers fall out of range. A cut shows up here, which is why many producers skip it. 

Tocopherols

Hard to manipulate

Seed oils carry a different tocopherol signature, so the totals fall outside the avocado range and give the blend away. Skipped for the same reason.

“A purity claim is only as good as the supplier behind it. Purity isn't a single test — it's a system. One that starts at the source, runs through every step of refining, and lives in the lot-level documentation behind every delivery. The brands that build it right in the next twelve months will own the category. The ones that don't will be the next headline.”

—Wayne Adams, CEO, Adams Group

THREE QUESTIONS WORTH ASKING ANY SUPPLIER

01

Do you test sterol composition, or only fatty acid profile?

02

Is the sterol and tocopherol work verified by a third party?

03

Can you produce lot level documentation for this delivery?

Where Adams stands

We are unequivocally against adulteration, and we advocate for authentic avocado oil and full transparency throughout the supply chain.

That isn't a slogan; it's how we operate:

01

Test every incoming load.

Every load of crude oil is tested for 100% avocado purity before it enters production. Not spot checks, not representative sampling: every load.

02

Run the full CODEX panel, not just the easy test.

We test all three families of markers, fatty acids, sterols and tocopherols, so dilution has nowhere to hide. Most producers stop at fatty acids; we do not.

03

Verify every result with an independent lab.

We run the fatty-acid analysis in-house and have it confirmed by a third-party laboratory (Eurofins). Sterols and tocopherols, the markers that actually catch adulteration, are tested entirely by Eurofins. The proof is graded by independent, internationally accredited labs, not by us.

04

We refine it ourselves, so we control the process.

For more than a century, refining has happened in our own facility in Arbuckle, California. That means we control every step, with full oversight and no blind spots
in between.

THE BOTTOM LINE

For a food manufacturer, avocado oil authenticity is a brand-protection issue.

The whole point of avocado oil is that it’s worth paying more for. A brand pays a premium to source it. A shopper pays a premium for the chips, mayo, or dressing made with it. That premium is a promise, and the promise only holds if the oil is real.

 

When the ingredient isn’t authentic, everyone down the line pays for something they did not get. Authenticity shouldn’t be optional. Transparency shouldn’t be optional. As the problem spreads from the bottle into finished products, the brands that can prove what they source are the ones that stay defensible.

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