US probiotic supplement use rises despite declining fiber intake

A recent study shows that probiotic supplement use in the United States has increased significantly between 2009 and 2023. Among adults, usage rose from 1.8 percent to approximately 7 percent, while for individuals under 20, the increase reached 786 percent, rising from 0.6 percent to 5.6 percent.

Despite this surge in supplement consumption, dietary habits supporting gut health have not improved. Fiber intake, which serves as essential fuel for beneficial gut microorganisms, has seen a slight decrease during the same period. Consumption of probiotic-rich foods like yogurt and kombucha has also seen only minimal growth.

Researchers, including lead researcher Dr. Kira Newman, suggest that some individuals may be viewing probiotic supplements as a substitute for a healthy diet rather than a complement to one. Experts emphasize that a diet rich in fruits, vegetables, legumes, and whole grains provides necessary fiber, vitamins, and minerals required to support a healthy gut microbiome.