The present invention is directed to a method of replacing collagen broken down during physical activity using a novel dietary supplement. The supplement composition of the present invention comprises collagen, glutamine, taurine, and, optionally, the nine essential amino acids. The uptake of collagen is enhanced using this combination of components to levels substantially near the pre-workout levels.

The present invention is directed to a method of replacing collagen broken down during physical activity using a novel dietary supplement. The supplement composition of the present invention comprises collagen, glutamine, taurine, and, optionally, the nine essential amino acids. The uptake of collagen is enhanced using this combination of components to levels substantially near the pre-workout levels.

The present invention is directed to a method of replacing collagen broken down during physical activity using a novel dietary supplement. The supplement composition of the present invention comprises collagen, glutamine, taurine, and, optionally, the nine essential amino acids. The uptake of collagen is enhanced using this combination of components to levels substantially near the pre-workout levels.

The present invention is directed to a method of replacing collagen broken down during physical activity using a novel dietary supplement. The supplement composition of the present invention comprises collagen, glutamine, taurine, and, optionally, the nine essential amino acids. The uptake of collagen is enhanced using this combination of components to levels substantially near the pre-workout levels.

The present invention provides the use of a glutamine derivative in preparing animal feed additives, and particularly the use of a glutamine derivative having a structure of formula (I), a racemate thereof, a stereoisomer thereof, a geometric isomer thereof, a tautomer thereof, a solvate thereof, or a feed acceptable salt thereof. Animal breeding experiments revealed that, the provided compounds, including the glutamine derivative, the racemate thereof, the stereoisomer thereof, the geometric isomer thereof, the tautomer thereof, the solvate thereof, and the feed acceptable salt thereof, can be used as animal feed additives, exhibiting excellent effect in improving animal production performance such as growth and feed efficiency.

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The present invention provides the use of a glutamine derivative in preparing animal feed additives, and particularly the use of a glutamine derivative having a structure of formula (I), a racemate thereof, a stereoisomer thereof, a geometric isomer thereof, a tautomer thereof, a solvate thereof, or a feed acceptable salt thereof. Animal breeding experiments revealed that, the provided compounds, including the glutamine derivative, the racemate thereof, the stereoisomer thereof, the geometric isomer thereof, the tautomer thereof, the solvate thereof, and the feed acceptable salt thereof, can be used as animal feed additives, exhibiting excellent effect in improving animal production performance such as growth and feed efficiency.

##STR00001##

A synbiotic preparation may include at least one probiotic strain and at least one amino acid or derivative thereof selected from glutamine, glutamic acid or salts thereof, conjugated glutamine, or oligopeptides of 2-10 amino acid units in length, wherein the amino acid units may be natural amino acids, and at least one amino acid unit being a glutamine or glutamic acid unit.

A synbiotic preparation may include at least one probiotic strain and at least one amino acid or derivative thereof selected from glutamine, glutamic acid or salts thereof, conjugated glutamine, or oligopeptides of 2-10 amino acid units in length, wherein the amino acid units may be natural amino acids, and at least one amino acid unit being a glutamine or glutamic acid unit.

The present invention is directed to a method of replacing collagen broken down during physical activity using a novel dietary supplement. The supplement composition of the present invention comprises collagen, glutamine, taurine, and, optionally, the nine essential amino acids. The uptake of collagen is enhanced using this combination of components to levels substantially near the pre-workout levels.

The present invention is directed to a method of replacing collagen broken down during physical activity using a novel dietary supplement. The supplement composition of the present invention comprises collagen, glutamine, taurine, and, optionally, the nine essential amino acids. The uptake of collagen is enhanced using this combination of components to levels substantially near the pre-workout levels.