Prebiotic support (inulin): Dandelion root is a natural source of inulin-type fructans, a prebiotic fibre that can nourish beneficial gut bacteria. Analytical work has quantified substantial fructan/inulin levels in T. officinale roots, supporting its use as a prebiotic ingredient. PharmaciaScienceDirect
Metabolic markers (evidence on inulin itself): Randomised human trials of inulin (not specific to dandelion) show modulatory effects on the gut microbiota and report signals on glycaemic outcomes in adults, though results vary by population and dose. This helps explain why inulin-rich roots like dandelion are often used in metabolic-friendly diets. BioMed CentralScienceDirect
Digestive comfort & bitters: Dandelion’s bitter compounds and phenolics are discussed in reviews for their roles in digestive function and gastrointestinal comfort, aligning with its traditional “after-meal” use. Evidence remains a mix of in vitro/animal data with emerging human-relevant mechanisms. ScienceDirect
Liver-focused research (early-stage): Contemporary reviews summarise antioxidant and hepatoprotective findings for T. officinale preparations—promising but still largely preclinical and not specific to roasted tea. MDPIOAJI
Glucose-related research (preclinical): Recent lab studies on dandelion root extracts (not brewed tea) explore antidiabetic potential via phenolics, inulin and polysaccharides; human trials specific to roasted root tea are lacking. MDPIRSU
Note: Only limited human data exist on the tea itself - roasted dandelion root tea. Most data are for dandelion concentrates or for inulin as dietary fibre.