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Drinking Green Tea May Protect Eyes


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Drinking Green Tea May Protect Eyes

Our Review Summary

The leap from rats drinking green tea to possible benefits in humans is never mentioned.  Enough said.


Why This Matters

This is the kind of story that contributes to journalism losing impact and credibility.  And HealthDay subscribers like and pick up and republish a story like this – spreading it even further.  Readers are flooded with info like this in a tsunami of information overload. Meantime, no one is any smarter from this story about how to evaluate evidence.


Does the story adequately discuss the costs of the intervention?

Not Applicable

Not applicable.  The cost of green tea is not in question.

Does the story adequately quantify the benefits of the treatment/test/product/procedure?

Not Satisfactory

None.  If you’re going to play the rat research game,  you should at least tell us the scope of the "benefit" seen in rats.  How many tested?  How many successes?

Does the story adequately explain/quantify the harms of the intervention?

Not Satisfactory

It feels almost ridiculous to have to comment on whether the story discussed harms seen in the rats drinking green tea, but, no, it didn’t.  But we weren’t the ones who chose to publicize this rat research. However, if you’re going to play this rat research game and trumpet benefits, you better be prepared to at least theoretically discuss potential harms – or lack thereof.

Does the story seem to grasp the quality of the evidence?

Not Satisfactory

No evaluation of the limitation of rat studies.  No explanation of what "reducing harmful oxidative stress" means.

Does the story commit disease-mongering?

Not Applicable

Not applicable.  in only a 169-word story, there wasn’t space given to describe glaucoma or other eye conditions. 

Does the story use independent sources and identify conflicts of interest?

Not Satisfactory

No independent expert was quoted – only a study author from a news release.

Does the story compare the new approach with existing alternatives?

Not Satisfactory

No such comparison given.

Does the story establish the availability of the treatment/test/product/procedure?

Not Applicable

Not applicable.  The availability of green tea is not in question.

Does the story establish the true novelty of the approach?

Not Satisfactory

No context about other green tea research or other glaucoma prevention research.

Does the story appear to rely solely or largely on a news release?

Not Satisfactory

The story admits its source is an American Chemical Society news release.  No other perspective is included.

Total Score: 0 of 7 Satisfactory


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