Probiotics are just, living bacteria as well as yeasts which provide multiple health benefits when consumed in the proper amount. There are multiple health benefits of probiotics. People should consume probiotics in their natural form or form of supplements. For example, if someone is suffering from arthritis then they should take the best supplements for arthritis . The health benefits of probiotics are much discussed but very less is talked about its side effects, when consumed in excess. The side effects of probiotics are experienced very rarely and to a very small population of people. People who have a damaged immune system or some other serious illness may experience severe complications. Here, we will tell you about some of the side effects. 1. Headache s The animes which are present in probiotics may cause headaches if consumed in excess. There are only certain probiotic foods which contain biogenic anime. These foods include kimchi, sauer