I was instructed to gulp down four of the pills — clear, plastic-looking, the width of a Biro, slightly longer than my thumb and filled with yellow oil — three to four hours before lunch, and again before supper. The aim of this is to get my L-cells functioning and suppress the appetite naturally before meals. It is followed by phase two, “sustain”, where you halve the dose for 12 more weeks, and three, “maintain”, which halves them again — and “can be taken lifelong”.