Development and Evaluation of Functional Probiotic Powder in Human Trials

Arm Description: Randomly select 30 healthy and well-trained athletes aged between 20 and 30 to serve as the control group. Participants in the control group will undergo an 8-week placebo supplementation intervention. The placebo has a similar appearance and taste to the probiotic powder but does not contain active probiotic ingredients. Before the intervention begins, a comprehensive health assessment and exercise capacity test will be conducted for the participants. Blood samples will be collected for baseline biochemical marker analysis. Participants will be instructed to take the placebo once a day at the same time to ensure the consistency and standardization of the intervention. Participants will be asked to record their daily consumption, including the time of intake, any omissions, or discomfort. After the 8-week intervention, exercise capacity tests and blood sample collections will be conducted again. Comparing exercise performance and biochemical markers before and after t

"Experimental:~Arm Description: Randomly select 30 healthy and well-trained athletes aged between 20 and 30 to serve as the experimental group. Participants in the experimental group will undergo an 8-week probiotic powder supplementation intervention. The dosage of the probiotic powder is set at 1x10\^9 CFU/kg·bw·d, which means ingesting 10 billion CFU (Colony-Forming Units) of probiotics per kilogram of body weight per day. Before the intervention begins, a comprehensive health assessment and exercise capacity test will be conducted for the participants. Blood samples will be collected for baseline biochemical marker analysis. Participants will be instructed to take the probiotic powder once a day at the same time to ensure the consistency of the dosage and the standardization of the intervention. Participants will be asked to record their daily consumption, including the time of intake, any omissions, or discomfort. After the 8-week intervention, exercise ca"