Welcome to the twelfth episode in the "What we've learnt this week..." series. These are short 15 minute or so podcasts where we discuss topics we have encountered in the preceding weeks; whether it be on the wards, in a journal, at teaching or even on Twitter!   This week Chris, Christina, Dilani, Hannah and Emma discuss clues pointing to malabsorptive syndromes, the MUST score, the HALT-IT trial, the short-comings of an erect chest xray and alcohol histories in our older patients!