Fig. 2From: Herbs and Spices- Biomarkers of Intake Based on Human Intervention Studies – A Systematic ReviewExamples of the most representative metabolites for each herb/spice identified in the reviewed studies. HMDB ID; phytohub code (PHUB); −G, glucuronide; −S, sulfate; aldehyde-menthol glucuronide (M2); menthol sulfate conjugates (M29); in the blood; in urine; in feces; in the intestine; in the liverBack to article page