Yu Ping Feng San — Jade Windscreen Powder Decoction

What studies say about the key ingredients

Traditional use is not the same as clinical proof. Here is the strongest human research we found for each ingredient, limitations included.

• Astragalus root · Meta-analysis, 8 studies, 750 participants · 2025
  TA-65 was associated with longer leukocyte telomeres compared with controls, but the meta-analysis found no significant improvement in frailty measures or inflammatory markers (CRP/IL-6). Mild gastrointestinal effects were reported.Limitation: Industry-funded trials reported larger effects than others, and the compound is a purified extract at doses not comparable to eating Astragalus root.PubMed 41286474 · 3 more astragalus root studies
• Red dates · Meta-analysis, 483 participants · 2025
  Jujube was associated with significantly lower BMI and triglycerides, and lower fasting blood sugar in people with type 2 diabetes. LDL and total cholesterol fell only in some subgroups. HDL, AST and ALT did not change significantly.Limitation: The authors state the overall quality of the evidence is limited, and results varied significantly by dose, treatment duration and disease type.PubMed 40399274 · 3 more red dates studies
• Honey · Meta-analysis, 14 studies · 2021
  Compared with usual care, honey was associated with lower combined symptom scores, cough frequency and cough severity. In two pooled placebo-controlled studies, the difference in combined symptoms was not statistically significant.Limitation: Only two studies compared honey with placebo, with high heterogeneity (I2=91%); the review calls for higher-quality placebo-controlled trials.PubMed 32817011 · 3 more honey studies

From the Nourilo Research Library. Findings come from specific doses, extracts and populations and may not apply to a home-cooked recipe.