The invention relates to the technical field of
fermentation, in particular to a
protein composition for promoting
calcium absorption and
muscle synthesis and preparation and application thereof. The
protein composition comprises the following components in parts by weight: 0.5-99 parts of
yeast protein and 0.5-20 parts of a
calcium source, the
protein content in the
yeast protein is more than or equal to 70%, and the
zinc content in the
yeast protein is more than or equal to 200mg / kg; in terms of the weight of the yeast protein, the content of
serine in the yeast protein is larger than or equal to 50 mg / g, and / or the content of
glutamic acid is larger than or equal to 110 mg / g, and / or the content of
leucine is larger than or equal to 90 mg / g, and / or the content of
isoleucine is larger than or equal to 55 mg / g, and / or the content of
valine is larger than or equal to 50 mg / g, and / or the content of
lysine is larger than or equal to 94 mg / g. The
protein composition prepared by combining the yeast protein as a main
raw material with the
calcium source and nutritional ingredients such as the
vitamin D, the
vitamin K, the collagen or the
casein phosphopeptides not only can promote absorption and utilization of calcium, but also can promote
muscle synthesis and improve
muscle quality, so that the requirement of collaborative health of muscles and bones is met.