The Claim

In right-handed individuals taking EPA and DHA supplements, the localized reduction in macrophage inflammatory protein-1β in the left gingival quadrant may be influenced by handedness-related differences in toothbrushing behavior.

Source: Omega-3 fatty acids and oral and systemic inflammation: A secondary analysis of a randomized trial in patients with coronary artery disease.

What the research says

Supports is higher

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

Supports
57score
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.

How it works
1 study reviewed
In plain English

People who brush their teeth with their right hand might be cleaning the left side of their mouth differently, and this could be why a certain inflammatory protein is lower on that side — especially if they're taking fish oil supplements.

See the scientific wording

The localized reduction in macrophage inflammatory protein-1β in the left gingival quadrant among right-handed individuals taking EPA and DHA supplements may be influenced by handedness-related differences in toothbrushing behavior, though this hypothesis was not directly tested.

What the research says

1 study

  1. Study: Omega-3 fatty acids and oral and systemic inflammation: A secondary analysis of a randomized trial in patients with coronary artery disease.

    People who brush their teeth with their right hand tend to clean the left side of their mouth better, and this study found that omega-3 supplements reduced inflammation more on the left side—maybe because that side was already cleaner. So handedness might be why the supplement worked better in one spot.

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

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