Danielle Kelvas MD is a Medical Advisor for R’s KOSO, the only 100% natural supplement (based on Japanese tradition) on the market that provides balanced nutrition, combining probiotics + prebiotics + postbiotics and enzymes which are clinically proven to improve gut health. https://rskoso.com/pages/medical-advisers
KOSO is a century-old traditional Japanese postbiotic superfood drink. Koso Cleanse is the leading way to improve your gut health.