The Claim

Chemical oxidation markers (peroxide and anisidine values) in commercial fish oil products in China are not significantly correlated with sensory odor attributes (fishy or rancid) as perceived by consumers.

Source: Systematically Investigating the Qualities of Commercial Encapsulated and Industrial-Grade Bulk Fish Oils in the Chinese Market

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
21score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Correlation
1 study reviewed
In plain English

In fish oil products sold in China, measurements of chemical oxidation do not reliably predict whether the oil smells fishy or rancid to consumers.

See the scientific wording

There is no significant correlation between oxidation levels (peroxide or anisidine values) and sensory odor (fishy or rancid) in commercial fish oil products in China, suggesting that chemical oxidation markers do not reliably predict consumer-perceived quality.

What the research says

1 study

  1. Study: Systematically Investigating the Qualities of Commercial Encapsulated and Industrial-Grade Bulk Fish Oils in the Chinese Market

    Scientists checked if fish oil that’s chemically old-smelling also smells bad to people—and found that sometimes it does, sometimes it doesn’t. So you can’t tell if fish oil is bad just by its chemical numbers.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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