There is no clear rule on how long you can eat after taking probiotics, probiotics are more effective when taken at mealtime or after a meal. Probiotics are bacteria or fungi that are beneficial to the human body including lactobacilli, bifidobacteria, yeast and so on. Probiotics have the ability to improve the function of the gastrointestinal tract, maintain the structural balance of the gastrointestinal flora, improve immunity, and assist in the digestion and absorption of nutrients. When diarrhea, indigestion, constipation, etc. can be appropriate use of probiotics to regulate the intestinal flora, improve the symptoms. It is important to note that antibiotics and probiotics can not be taken at the same time, to avoid the antibiotics kill probiotics, it is recommended to take two hours apart. Specific medication should follow the doctor’s instructions.