Abstract: The invention relates to the field of protein-dense liquid nutritional compositions for use in the treatment and/or prevention of a condition linked to loss of muscle mass and/or strength. Provided is a heat-treated liquid high-protein composition comprising at least 10 g of protein per 100 ml of the composition, wherein at least 40 wt. % of the protein is micellar casein and at least 10 wt. % of the protein is hydrolysed whey protein having a degree of hydrolysation of at least 5%, and wherein the weight ratio of micellar casein to hydrolysed whey protein is in the range of 40:60 to 90:10, for use in any one or more of the following: a) preventing or reducing coagulation in the upper gastro-intestinal tract; b) increasing the rate of gastric emptying; c) enhancing protein digestion; d) increasing the blood serum concentration of free essential amino acids, preferably leucine, in a subject.

Abstract: This disclosure relates to methods of inducing adipocyte browning, supporting metabolic flexibility, and/or reducing detrimental WAT deposition or reducing WAT dysfunction in a subject by administering extensively hydrolyzed casein and/or fractions N thereof (“eHC”) to the subject, and/or by administering a long chain polyunsaturated fatty acid (e.g., docosahexaenoic acid and/or arachidonic acid) to the subject.