NSF Certified for Sport
Atrantil is a gut-health capsule combining three plant polyphenols — Quebracho Colorado, Horse Chestnut and Peppermint — in a patented formulation developed by a US gastroenterologist around methane-producing gut bacteria (relevant to IBS-C / SIBO contexts). NSF Certified for Sport — every batch is screened against 280+ banned substances. Amazon UK lists at £44.
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