A recent study led by Washington State University suggests that elderberry juice may be a potent tool for weight management and enhancing metabolic health. Drinking 12 ounces of elderberry juice daily for a week causes positive changes in the gut microbiome and improves glucose tolerance and fat oxidation. Elderberry is an underappreciated berry that has been used as a folk remedy for centuries. The study found that elderberry juice reduced participants' blood glucose levels by an average of 24% and increased beneficial gut bacteria while decreasing harmful bacteria. The researchers attribute these positive effects to elderberry's high concentration of anthocyanins.