Research has shown that hydrogen can regulate gut microbiota, and many people have reported that constipation has improved significantly after drinking hydrogen water. It should be noted that there is no research evidence in this field yet, as constipation is a very complex problem and there are many reasons for it. In addition, some people have significantly improved constipation when starting to drink hydrogen water, but the mid-term effect has been repeated. It is recommended to use it in conjunction with other foods that advocate for conditioning (probiotics, dietary fiber, etc.). Finally, it should be noted that not everyone's constipation can be improved by drinking hydrogen water, and the effectiveness has a certain population ratio.