A Beneficial Role of Rooibos in Diabetes Mellitus: A Systematic Review and Meta-Analysis.

Molecules · 2018 · PMC6017582 · PMID 29642387

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showed a trendno p-value reported

In our subgroup analysis which included the solo study using KK-A y mice, the chronic treatment with GREs for more than 3 days showed a trend but failed to exhibit significant beneficial effects on their blood glucose levels.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.