The efficacy and safety of herbal medicines for glycaemic control and insulin resistance in individuals with type 2 diabetes: an umbrella review.

BMC Complement Med Ther · 2025 · PMC12481776 · PMID 41029669

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approaching clinical significanceno p-value reported

Ginger, turmeric, cardamom A meta-analysis of 22 RCTs investigating the effects of ginger, turmeric or cardamom extracts found moderate certainty evidence of a reduction in HbA1c when all interventions were pooled (WMD = −0.432%, CI −0.607 to −0.257), for ginger alone (WMD = −0.467%, CI −0.760 to −0.174) and turmeric alone (WMD = −0.486%, CI −0.766 to −0.206), approaching clinical significance [ 36 ].

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