A protein mixture of meat extract and collagen from bovine muscle takes the form of a soluble powder composed of macronutrients such as carbohydrates, lipids and proteins, micronutrients such as calcium, iron and sodium, and saturated fat. It is therefore a balanced formulation that preserves all essential amino acids, represents a source of iron and calcium and exhibits a low sodium and saturated fat content. The protein mixture can be used with any type of edible liquid or paste, in the form of food supplements, enteral or parenteral fortifying diets, and is particularly recommended for patients or persons suffering from some form of deglutition disorder.