Avocado oil chips have become a staple of the "healthy snacking" aisle. The label says avocado oil. The marketing says clean. The price reflects both. A study published in Applied Food Research by researchers at UC Davis found that in nearly 9 out of 10 cases, the product inside does not match the label outside.
The study: 54 products tested, 48 failed.
Researchers at the UC Davis Department of Food Science and Technology, led by Professor Selina Wang, purchased 54 avocado oil-labeled processed foods from online retailers and California stores in 2025 and 2026. Products included chips, mayonnaises, and salad dressings, all labeled as containing avocado oil. Using fatty acid and sterol profiles, which serve as chemical fingerprints unique to each oil, researchers tested whether the oil inside matched what the label claimed.
48 of 54 products, or 89%, were adulterated with cheaper oils. Breaking it down by category: 93% of chips failed, 71% of mayonnaises failed, and 100% of salad dressings failed. Researchers gave products a 10% margin of deviation to account for natural variables like geographic origin and avocado variety. Even with that buffer, 89% still failed.
For comparison, the same researchers applied identical purity tests to 20 olive oil-labeled processed foods. Only one failed.
"Consumers are increasingly paying a premium for products made with avocado oil," said Wang. "They deserve to get what they pay for."
The economics explain everything.
Pure avocado oil costs between $4 and $5 per pound. Seed oils, including sunflower, soybean, and corn oil, cost between $0.50 and $1.50 per pound. For a food manufacturer producing chips at scale, the incentive to cut avocado oil with cheaper seed oils is enormous. The label does not change. The margin does.
Wang noted that brands whose products failed may not even know they are using adulterated oil. Most food companies source ingredients through third-party brokers or multiple suppliers, and without rigorous independent testing, adulterated oil can pass through the supply chain undetected. "Suppliers of adulterated oil may be hiding behind a couple of layers of supply chain, making it difficult to identify where the problem originated," Wang said.
This is not a new problem. A 2020 UC Davis study found that 82% of commercial bottled avocado oil was either rancid or mixed with other oils. A follow-up study found 70% of private label avocado oils were rancid or adulterated. The 2026 study confirms the fraud has fully migrated into processed food products carrying the avocado oil label.
This is what happens when private equity runs the food supply.
The avocado oil chip trend followed a predictable playbook. A clean ingredient gains consumer trust and commands a premium. Large food companies and their investors notice the margin opportunity. They acquire or replicate the product, source the cheapest approximation of the ingredient they can get away with, keep the label intact, and pocket the difference. The consumer, who is actively trying to make a better choice, ends up with seed oils in a bag that says avocado oil.
This is the same pattern that has played out with olive oil, with grass-fed beef labeling, and with organic certification. When an ingredient becomes a marketing asset, the incentive to dilute it grows proportionally to its price premium.
Tallow does not have this problem.
Seed oils are cheap, unstable, and industrially processed. They are also invisible when they show up inside a product that claims to use something else. Tallow is none of those things. It is a single-ingredient animal fat with a stable fatty acid profile, a high smoke point, and no supply chain complexity that would incentivize adulteration. You cannot secretly replace tallow with a cheaper version of itself and still call it tallow.
Brands like Rosie's and Vandy use tallow strictly and do not cut corners. There is no profit motive to adulterate a simple, single-source animal fat with an inferior substitute, because the inferior substitute does not exist at a comparable price point. The economics that drive seed oil fraud in "avocado oil" chips do not apply to tallow-cooked alternatives.
The Animal Base Perspective: You Need Someone Vetting This For You.
The "avocado oil" label exists to make you feel confident about a product you might otherwise question. That confidence is being manufactured. The UC Davis study did not find one or two bad actors. It found a near-universal failure rate across an entire product category. Every salad dressing. Nine out of ten chip brands. The label, in most cases, is fiction.
At Animal Base, ingredient integrity is the filter through which every product we carry passes. We do not stock products because they have the right words on the front of the bag. We stock them because we have vetted what is actually inside. In a food environment where 89% of a premium product category is fraudulent, that vetting is not a nice-to-have. It is the entire point.
