Chinese Report Found Fatty Food & Tea Has a Positive Correlation with Rosacea

[Guide]

"We found that high-frequency intake of fatty food and tea presented a positive correlation with rosacea, while high-frequency dairy product intake showed significant negative correlation with rosacea. Sweet food, coffee and spicy food appeared to be independent of any subset of rosacea in our study. However, high-frequency dairy product intake showed a borderline beneficial effect on rosacea severity. We further analyzed the correlation between diet and the subtype of rosacea. We found that high-frequency fatty intake was associated with erythematotelangiectatic rosacea (ETR) and phymatous rosacea, while high-frequency tea intake was only associated with ETR. In addition, high-frequency dairy product intake showed negative correlations with ETR and papulopustular rosacea. Rosacea is associated with some dietary factors, and our study is valuable in establishing dietary guidelines to prevent and improve rosacea." [1]

Did you notice a paradox with the two statements on intake of dairy product?

'while high-frequency dairy product intake showed significant negative correlation with rosacea'

'high-frequency dairy product intake showed a borderline beneficial effect on rosacea severity'

Maybe something is lost in translation?  

This one statement takes the cake with the following statement: 

'Sweet food, coffee and spicy food appeared to be independent of any subset of rosacea in our study.'

At least one statement we can agree upon, "Rosacea is associated with some dietary factors."

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End Notes

[1] J Dermatol. 2019 Jan 18. doi: 10.1111/1346-8138.14771. 
Relationship between rosacea and dietary factors: A multicenter retrospective case-control survey.
Yuan X, Huang X, Wang B, Huang YX, Zhang YY, Tang Y, Yang JY, Chen Q, Jian D, Xie HF, Shi W, Li J.

[Guide]

The above report was done with 'questionnaires' and was not done with placebo controlled double blind studies. Again, the above study on diet and rosacea is simply anecdotal reports. 

Another point to question is, does the tea consumed by the respondents to the 'questionnaire' have sugar or not? 

Wouldn't it be an incredible accomplishment if 10K rosaceans got together and unitedly sponsored an investigative research study on diet and rosacea and actually conducted a clinical study with placebo controlled, double or triple blind controls with a peer reviewed process on this subject. If each rosacean donated $1 and we all agreed this is what we want investigated, do you think that one of the RRDi MAC members might be encouraged to do such an investigation if we sponsored such a study?  You try to get 10K members to do this. I have been trying for seventeen years.