... Elderberries contain organic pigments, tannin, amino acids, carotenoids, flavonoids, sugar, rutin, viburnic acid,vitamin A and B and ... are also mildly laxative, a diuretic, and diaphoretic.Flavonoids, including quercetin, are believed to account for the ... According to test tube studies2 these flavonoids include anthocyanins that are powerful antioxidants and protect cells against damage Applications: ...