Kate puts health advice and kit through their paces, from marathon-tested gear to cutting through overhyped supplements Set as preferred source Ashwagandha, the much-touted 'adaptogenic' food supplement, is suddenly everywhere, from the aisles of high street health shops to countless social media posts. But with a growing list of European countries considering a ban, we investigate whether it's a safe and proven solution for anxiety, or a possible gamble with your health.