To me the focus on insulin for processed foods may be very incomplete. While refined carbs are bad, the problem is probably more related to the entire gastroin

To me the focus on insulin for processed foods may be very incomplete. While refined carbs are bad, the problem is probably more related to the entire gastrointestinal pipeline and immune system. Processed foods are not just high in refined carbs, but also low in fiber, involve emulsifiers, stabilizers, preservatives, pasturization, and more. Fiber is needed for healthy intestines, and may be essential for limiting overall systemic inflammation. High temperatures denature molecules, create a large number of carcinogens: polycyclic aromatic hydrocarbons, advanced glycation end products, etc. Preservatives like sodium benzoate combine with molecules like citric acid to form benzene and is a problem for many soft drinks. Emulsifiers, i.e. many stuff labelled as "gums", may literally be gumming up your works, making it difficult for your intestines to do their job, causing heartburn, inflammation, etc. I'm not opposed to highly processed things because they are processed with advanced technology. But profit-seeking companies selling things to ignorant shortsighted consumers will maximize for shelf life, taste, and appearance over health almost every time. And it is our fault because deep down we know this.