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For context, the four food groups in the Nova taxonomy are 1/ unprocessed foods, 2/ culinary ingredients, 3/ processed foods, and 4/ UPF, which are industrial formulations made by deconstructing whole foods into chemical constituents, altering them, and recombining them with additives into final products.

There are four groups in the Nova classification of food products:
Unprocessed products.
Culinary ingredients.
Processed foods.