Dietary foods for medical use, including pastry and confectionery and bread and bread substitute products (in particular rusks, crispbread, crackers, biscuits, waffles), pasta, flour, protein-reduced meat products and charcuterie, and protein-reduced milk and protein-reduced cheese, protein-reduced egg substitutes in powder form; all the aforesaid goods, including low-protein and/or gluten-free and/or in frozen form; amino acid and albuminous preparations for medical use and medicinal preparations in the form of liquids, powders, effervescent tablets, gels and capsules; nutritional supplements and food supplements for human beings