Gas in the first weeks of a probiotic: what is normal and when to stop
Some gas when you start a new probiotic is common, and it is usually minor. NIH's Office of Dietary Supplements says probiotics may cause gas in healthy people, and that side effects are usually self-limited gut symptoms such as gas. Stop and talk to a doctor if symptoms are severe, keep getting worse, or come with warning signs like blood in your stool.
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