I really hate the notion of "ultra-processed" foods. The NOVA food classification system[1], which established the term, is loose and unscientific about what "ultra-processing" means, and different articles use the term interchangeably with different types of foods, many of which could barely be considered to be processed beyond what a home cook might do.<p>For example, pictures of potato chips or bacon are often pictured and vilified as ultra-processed foods. The NOVA system describes these as "processed" (but not "ultra-processed") foods, and that's almost certainly the case. A home cook can make bacon by curing pork belly in salt and natural spices and then cooking it in a conventional fashion, or frying potato slices in oil and then salting them. Many bacons and potato chips list few ingredients beyond pork or potatoes, salt, and in the case of chips, oil. These can hardly be considered "ultra-processed", even if the American diet of cured and smoked meats may not be optimal for cardiovascular health. These are things people were eating for centuries, long before modern grocery stores and preparations.<p>But even then, the NOVA system is obtuse. Ice cream is listed as an ultra-processed food, even as you can pick up Haagen Dazs vanilla at Walgreens with only "cream, milk, eggs, sugar and vanilla." You can certainly make a simulacrum of it of similar quality at home using the same ingredients and an ice cream maker. Is it "healthy"? Almost certainly no! Is it ultra-processed? Also, almost certainly no!<p>Other "ultra-processed" foods according to NOVA are "sweetened and flavored yogurts including fruit yogurts" which again can be made at home using no artificial ingredients with... sugar and fruit, hardly ultra-processing. Chocolate milk is an ultra-processed food according to NOVA, consisting of... milk, cocoa and sugar, which again, you can certainly make at home and is not some sort of industrial concoction.<p>We are all well aware of the issues with excessive sugar and salt in the diet, and this was established long before any of us were born.<p>Everything you read about "ultra-processed foods" is junk science. There may well be certain preservatives or preparations that aren't good for us, but the classifications in place are total garbage, and don't point us to any actual risks beyond the natural ingredients we have all known to be problematic from time immemorial.<p>[1] The NOVA classifications: <a href="https://ecuphysicians.ecu.edu/wp-content/pv-uploads/sites/78/2021/07/NOVA-Classification-Reference-Sheet.pdf" rel="nofollow">https://ecuphysicians.ecu.edu/wp-content/pv-uploads/sites/78...</a>