You don’t lack willpower. You lack protein. After 30 years in medicine, this is one of the most common patterns I see. People think they’re “bad at dieting”. They’re not. They’re just not getting the right signals. 𝗪𝗛𝗬 𝗧𝗛𝗘 𝗦𝗜𝗚𝗡𝗔𝗟 𝗙𝗔𝗜𝗟𝗦 After you eat, your gut releases two hormones: GLP-1 and PYY. They travel to your brain. They say: 𝗲𝗻𝗼𝘂𝗴𝗵. Protein is the strongest trigger for that signal. Ultra-processed food is typically: • Low in protein • High in refined carbohydrates • Soft • Fast to eat • Fast to digest The signal arrives late. And weak. So you keep eating. Then you’re hungry again an hour later. Not a discipline problem. A signalling problem. 𝗪𝗛𝗔𝗧 𝗧𝗛𝗘 𝗥𝗘𝗦𝗘𝗔𝗥𝗖𝗛 𝗦𝗛𝗢𝗪𝗦 In a landmark NIH randomised controlled trial (Cell Metabolism, 2019): Two diets Calories matched. Macros matched Sugar, fibre and sodium matched. Participants could eat freely. On the ultra-processed diet: ~500 extra calories per day • Weight gain On the minimally processed diet: • Weight loss Same calories available. But the signal to stop eating was different. 𝗧𝗛𝗘 𝗣.𝗥.𝗢.𝗧.𝗘.𝗜.𝗡. 𝗙𝗥𝗔𝗠𝗘𝗪𝗢𝗥𝗞 𝗣 — 𝗣𝗿𝗶𝗼𝗿𝗶𝘁𝗶𝘀𝗲 𝗽𝗿𝗼𝘁𝗲𝗶𝗻 𝗮𝘁 𝗲𝘃𝗲𝗿𝘆 𝗺𝗲𝗮𝗹 The anchor. Not the afterthought. 𝗥 — 𝗥𝗲𝗮𝗹 𝗳𝗼𝗼𝗱 𝘀𝗼𝘂𝗿𝗰𝗲𝘀 𝗳𝗶𝗿𝘀𝘁 Eggs, fish, meat, legumes, Greek yoghurt. 𝗢 — 𝗢𝗿𝗱𝗲𝗿 𝗺𝗮𝘁𝘁𝗲𝗿𝘀 Protein before carbohydrates blunts the glucose response. 𝗧 — 𝗧𝗮𝗿𝗴𝗲𝘁 𝗮𝗿𝗼𝘂𝗻𝗱 𝟮𝟬–𝟯𝟬𝗴 𝗽𝗲𝗿 𝗺𝗲𝗮𝗹 A practical range. The exact amount varies by person. 𝗘 — 𝗘𝘅𝗮𝗺𝗶𝗻𝗲 𝘆𝗼𝘂𝗿 𝗵𝘂𝗻𝗴𝗲𝗿 𝗵𝗼𝗻𝗲𝘀𝘁𝗹𝘆 Consistently hungry soon after eating? Check the protein first. 𝗜 — 𝗜𝗻𝗴𝗿𝗲𝗱𝗶𝗲𝗻𝘁 𝗹𝗶𝘀𝘁 𝗼𝘃𝗲𝗿 𝗻𝘂𝘁𝗿𝗶𝘁𝗶𝗼𝗻 𝗹𝗮𝗯𝗲𝗹 Lower protein density. Longer ingredient list. Less fullness 𝗡 — 𝗡𝗶𝗴𝗵𝘁-𝘁𝗶𝗺𝗲 𝗶𝘀 𝘄𝗵𝗲𝗻 𝗶𝘁 𝗰𝗼𝗺𝗽𝗼𝘂𝗻𝗱𝘀 Late ultra-processed snacking adds calories when you need them least. Three low-protein meals a day. 365 days a year. Or three meals anchored by protein, and a brain that actually receives the signal to stop. Most people blame themselves. However the signal was never strong enough.