It's not so much that the food molecules are different, but the amounts that ultimately makes something "unhealthy." It's right there in the first paragraph: >

It's not so much that the food molecules are different, but the amounts that ultimately makes something "unhealthy." It's right there in the first paragraph: > high-fat, high-sugar, high-salt diets Much like how the attention industry has refined advertisements, games, news, etc to become exceedingly effective at targeting the pleasure areas of the brain, making us want to consume more, so too has the food industry. Humans have evolved to find pleasure in eating fat, sugar, and salt, as the former are excellent sources of energy, and the latter is required by many processes ("Brawndo, it's got what plants crave!"). Processed food has optimized, distilled, and combined these components into foods that could never be found in nature, and which our bodies are ill-equipped for.