Understood). Master of lifelong learning in human nutrition and dietetics + 60 ects credits more information the nova system classifies processed foods the definition and classification most recognized by the scientific community for this type of categorization and which has also been used in countless studies is the " nova system ". In it, any food or food product can be included in one of these four groups by virtue of its processing: nova 1. Includes unprocessed and minimally processed foods. They can be foods of plant or animal origin, as presented after harvest, collection,
or slaughter and modified foods but that do not add or introduce any substance. Examples: fresh or frozen vegetables and fruits; grains including all types of rice; freshly squeezed fruit juices or fruit juices with no added sugar ; fresh or frozen meat; pasteurized milk nova 2 or processed culinary ingredients. They are obtained from group 1 foods by crushing, pressing e commerce photo editing service or grinding and are used mainly as a base for cooking or for seasoning . Its main characteristic is that they are not usually consumed alone. Clear examples of this group are salt, vegetable oils, butter, sugar, etc. Nova 3. Refers to processed foods. They are normally nova 1 products that have been combined with nova 2 products (salt, sugar, oil...). These products usually contain between 2 and no more than 5 ingredients.
Nova 4. Corresponds to ultra-processed products. They are usually industrial preparations with more than 5 ingredients, in general, being impossible to find in the context of a domestic kitchen. They can and usually are subjected to unnatural processes such as hydrogenation, extrusion, milling, etc., and are usually that kind of product that is especially lavish in food advertising (well above the products in the rest of the nova categories). So, in the end, are processed foods healthy? Food processing cannot, by itself, be negative .