# The Avocado Oil Boom Has A Fraud Problem, New Study Suggests

> **Newsylist Open Intelligence Dossier** · First detected: 2026-07-16 10:29 UTC · Category: Business · Sources: 8 · Current Velocity: 5.66

## Executive Summary
A new UC Davis study reveals widespread purity issues in commercial avocado oil products, including chips, mayonnaise, and salad dressings.

## Intelligence Brief
A study conducted by UC Davis indicates that a significant portion of products marketed as containing avocado oil fail authenticity testing. Researchers found that items ranging from snack chips to salad dressings and mayonnaise frequently do not contain pure avocado oil.


Coverage from Yahoo Finance, Morningstar, Forbes, and Bioengineer.org emphasizes that 100% of the salad dressings and mayonnaise samples tested failed purity standards. Additionally, the findings show that nearly 9 out of 10 tested products labeled as avocado oil failed to meet authenticity benchmarks, with Marianne's identified as the study's benchmark for 100% pure avocado oil.


Future reports may address industry responses to the purity test findings. Coverage does not yet specify if regulatory actions or product recalls will follow the publication of the UC Davis study.

## Verified Facts & Key Claims
### What specific products were found to be adulterated?
The study identified purity failures in commercial avocado oil chips, mayonnaises, and salad dressings.

### Which brand was highlighted as a benchmark for purity?
Marianne's was named the study's benchmark for 100% pure avocado oil.

### What proportion of products failed the testing?
According to the study, nearly 9 out of 10 products tested failed authenticity checks, with 100% of the mayonnaise and salad dressing samples failing.

## Key People, Organizations & Locations
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## Multi-Source Evidence Table
| Source Outlet | Headline | Published (UTC) | Verification URL |
|---|---|---|---|
| Yahoo Finance | New UC Davis Study Confirms Avocado Oil Fraud Has Moved into Chips, Mayonnaises and Dressings | 2026-07-15 15:17 | [Source Link](https://news.google.com/rss/articles/CBMilwFBVV95cUxQRG0yUzJoUWxSZ3BwRGZYdVUxWXhUM1BYRE5NQW5PVkdYaHR5UkNQNHh2WTZLMUVoRTNJVDN0TFBQWkpUVDg4S1M0MTRNbnN4M1RLV1ZoT3hPZDloVDJkamVTbWE5VWJpSFFfa2Vra0dGY2M0VkxxU0l6THdMX1NOVTBvN00xWXV1V0FzVFNfTDZybFhTbWlN?oc=5) |
| Morningstar | New UC Davis Study Finds 100% of Avocado Oil Salad Dressings and U.S. Mayonnaises Fail Purity Testing; Marianne's Named the Study's Benchmark for 100% Pure Avocado Oil | 2026-07-15 15:17 | [Source Link](https://news.google.com/rss/articles/CBMiwwJBVV95cUxPenhsakhsallvaHQ2MmMtcnUweVhRV0sxeWpHV3E4M2tpdWFILWpXOW15UUZDdXZIdmt1Qm1JcTZ4TUtBOXpiU3hZcTZjR1hHTUdSWGVWLXpEdVNiT3RCZ2QxQ0VpemQtOTZqMGJIT2FPV1Y0WktYUU5BbVNWRy14bnI4SW9iRnpmUTZHSE5DQzR6c0RQRC1pTFJFbThWa3Yyck1YaU5taXhOWE1LbnR0a2JwbFF5RUk4TUZuOTUzRENxNlpvbzJPTDRVbzd2UDl1RGE4YTBETEJtVnNmV1pjcGVsT1JMZHRGSVpydW9kNkdHc01LeTdidXJnbTdqai1qZ181d2pTeFhGN211UlBMSTlXLU9UMEQyUHZOVzZ5M2hyVUVMX3p1UHhzUFRjYVlNWjMzQ2JiOG92NGRKQS1fUldvUQ?oc=5) |
| StudyFinds | Nearly 9 in 10 "Avocado Oil" Products Flunk New Authenticity Test | 2026-07-15 15:17 | [Source Link](https://news.google.com/rss/articles/CBMikAFBVV95cUxPRjc4dDdTVE5pVE90dUtFSXptOUQtRERoeTB3bzducW03NUZUSEg1T3ZuYlI4Rll1UWdkOFAxcHdtLWdYTUhSYkxYeGZuMVZSOUV3MHJZTkljeVZ4djBIcmZtaTNaeWcxSmdDejYza3NuZnQzLWlUYkJNRHpjbGFyY3ctYldLWlBZblhrSHVjY0k?oc=5) |
| UC Davis | That Avocado Oil Chip You're Eating May Not Be Made With Pure Avocado Oil | 2026-07-15 15:17 | [Source Link](https://news.google.com/rss/articles/CBMinAFBVV95cUxNam9rMC1EVHBHcGdPMEZaMUVod2JNRnRVcV9IbDE5bGpXQVVDV2RERU5KZmFsUnl2cVV2UzY3N1ZUZXNLYlQwTGEwU2MwTXpRSHlLNExfRmRVZlo2NFltek52MEVxeFZkTnZfNVNncXUzc2I5MmxQaTg1VFM1cklYaVl5QlhqZHllX3VMRWdBUEdZTkxBS3Vya1NwNGM?oc=5) |
| Bioengineer.org | Avocado Oil Chips Might Not Use Pure Avocado Oil | 2026-07-15 15:17 | [Source Link](https://news.google.com/rss/articles/CBMifkFVX3lxTE96ZFMzSGY0M01ZWHRZRVRjXzRYNG9PODE5N0U2UW03bVVISjhwUHN4WWtKWWJmYTUtekE3VnQwbmlLc3BPT0xhaDlGaGpITUw4cU1Jd2hXZE9NalJKVWlXZVktcjViNFlEQjNZQXVEajVJbmVtVmdQY0FBWHBldw?oc=5) |
| geneonline.com | UC Davis Study Finds Widespread Adulteration in Commercial Avocado Oil Products | 2026-07-15 15:17 | [Source Link](https://news.google.com/rss/articles/CBMiqwFBVV95cUxNWVU4ajkwTzNzQ0FMc0ZsR3RqQnU1N21pMzRlcEJ2RTBYTkNUeTB3dk1oNFVzMkZRTEZkVmFoR0hHWjJXSkJyYnF3cXRiQ0NjNDhqSF9TeVJISnFfa1JfWmdXa1NlUm9QRHUwblI0WnhGUnllbkZTQUpONi1SRm8tNFJBTWlRLTFCSFVpMGNwbWlrbGs0SHhfb1N5NTV4blJUNFJ0bHpCRm9TejQ?oc=5) |
| UC Agriculture and Natural Resources | That avocado oil chip you’re eating may not be made with pure avocado oil | 2026-07-15 15:17 | [Source Link](https://news.google.com/rss/articles/CBMiYkFVX3lxTFBZU2E2eEFiQ25BdXVWbXpaWE9NSFhfb2FoU3FlLXcwdGRwZXVZcFl1bDlkX0xMcmM4YzV2Zzd0M3N6VjZwdEs1NE1QQWVHaUFuZUdhYm9PeWNOcktlWlVNcTFB?oc=5) |
| Forbes | The Avocado Oil Boom Has A Fraud Problem, New Study Suggests | 2026-07-15 15:17 | [Source Link](https://news.google.com/rss/articles/CBMiswFBVV95cUxQa2t1YjN1ampoQ29lZ0dRbTl0STBPMWhidnMwZVV5U1g4MmU5cTkzdEstM05Rc3VaMGx6eDBhbUFLSE1ybm9OdE9FYkctQmVPRDQ3Q2VoTGwtS2ItbDB5TEt5WlE3aVN5bTdmT2tES2U1QW8zdjdObmlGemg3RU9RSkxnZzFKc2UyY0FGYVAxZE9tM2tyYm9zempyZ0NORVpIaEZzdFZCeVNYRnVBNWtWa2p0Zw?oc=5) |

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