A bigger number is not a better number. When you shop for a high-polyphenol olive oil or supplement, the figure on the label depends entirely on how it was measured — and two labs can look at the exact same oil and report wildly different numbers. Here is how to tell an honest measurement from a marketing one.
First, what are we even measuring?
Polyphenols (also called biophenols) are the protective plant compounds that make early-harvest olive oil worth taking seriously — compounds like hydroxytyrosol, tyrosol, oleocanthal, and oleacein. They are the reason a truly fresh olive oil has that peppery catch at the back of the throat, and the reason the Mediterranean diet is studied for heart health, healthy inflammation response, and longevity. The whole point of a high-phenolic product is how many of these compounds it actually delivers. So the test that counts them has to be accurate.
HPLC: the gold standard
HPLC (High-Performance Liquid Chromatography) physically separates an oil into its individual compounds and measures each one directly. It is precise, repeatable, and — critically — it is the method the International Olive Council (IOC) recognizes as the official, validated way to quantify olive oil polyphenols. Results follow standardized global protocols, which means an HPLC number from one certified lab can be compared to an HPLC number from another. When a compound is counted, it is because the instrument actually found and measured that compound.
NMR: useful science, misused for marketing
NMR (Nuclear Magnetic Resonance) reads molecular signatures using magnetic fields and predictive modeling — it infers content rather than separating and counting it directly. NMR is legitimate technology, but for polyphenol quantification it has three problems when it's used to sell:
- It is not recognized by the IOC for official polyphenol certification.
- Its results are not directly comparable to HPLC — different calibration models produce different numbers.
- It can report dramatically higher values for the very same oil.
How much higher? An oil that measures around 600 mg/kg by HPLC can appear as 1,200–1,800 mg/kg under certain NMR-based interpretations — two to three times the number, with zero change to what's actually in the bottle. If your goal is to print an impressive figure on a label, you can see the temptation.
Comparing an NMR number to an HPLC number is like comparing Celsius to Fahrenheit without converting — the figures look different, but a raw number without its method is not a quality indicator at all.
Why this should sound familiar
If you've ever shopped for Manuka honey, you've met this problem before. Informed buyers learned to ignore vague "activity" claims and look for a lab-verified standard (MGO / UMF) instead, because the honest number and the marketing number were rarely the same. High-phenolic olive oil is at that same moment now. The brands that lead with the biggest headline figure are often the ones relying on the method that inflates it.
Where Pomoni stands
We test with both HPLC and NMR, through independent laboratories, on every batch. And we lead with HPLC — the gold standard — because that is the number you can trust and compare. We're glad to show our NMR result too; it holds up right alongside the brands quoting inflated figures. But we refuse to build our marketing on the higher, softer number. A high-phenolic classification means something specific, and we'd rather earn it honestly than win a numbers game that misleads the person taking our product.
That is the entire philosophy behind Pomoni: prove it, then sell it. Our founder, a physician, built this company because he was tired of watching the supplement aisle reward the loudest claim instead of the most rigorous one.
What to look for — in any high-phenolic product
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Ask which test the number comes from. If a brand won't say, assume the flattering method.
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Look for HPLC and, ideally, IOC-aligned protocols.
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Ask for a batch-specific Certificate of Analysis — not a one-time marketing sample from years ago.
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Be skeptical of unusually round, unusually large numbers. Real HPLC values are specific.
Frequently asked
Is NMR a "bad" test?
No — it's valuable technology for many purposes. The issue is using NMR's higher, non-standardized polyphenol figures to market a product as if they were equivalent to HPLC. They aren't.
Why would a company use NMR then?
Because it can produce a bigger headline number, and a bigger number is easier to sell to someone who hasn't been told the difference.
Does Pomoni's HPLC number beat the NMR numbers others advertise?
Our HPLC result is genuinely high on its own merits — and we publish it because it's the honest, comparable figure. We simply won't quote an inflated number to win a comparison.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
