Clinical Study on the Effect of Probiotic Compound Powder on the Immunity Improvement of Preschool Children

"During study intervention, subjects are required to take the randomly assigned product based on the randomization list.~Taking assigned product directly or mix it with milk/water/other liquids below 37 ℃, take it half an hour after meal.1 bottle a day. Lasting for 24 weeks intervention period."

"Subjects are required to take the randomly assigned Instant probiotic placebo based on the randomization list.~Taking assigned product directly or mix it with milk/water/other liquids below 37 ℃, half an hour after meal.~1 bottle a day. Lasting for 24 weeks intervention period."