Researchers are searching for new ways to treat disease in livestock and reduce or eliminate the need for antibiotics. Including herbal and traditional medicines, which contain many previously underutilized treatments. In a recent study, researchers tested the use of Arula-7 powder (ASP) to treat calves infected with pathogenic E. coli. ASP is a traditional Mongolian medicine combining seven plants and is used to treat intestinal diseases like diarrhea, which is a key symptom of E. coli infection in calves. In this study, adding ASP to the milk fed to young, infected calves for 7 days was protective. Specifically, ASP supplementation improved weight gain, reduced diarrhea and inflammation, and improved immunity. ASP also reduced abundance of some bacterial groups like Proteobacteria, while boosting others like Lactobacillus in the calves' feces The results reveal new insights into the biological impact of ASP powder and suggest that early intervention with ASP may help calves infected with pathogenic E. coli. While more research is needed, this study could lead to new veterinary products that could help reduce the need for antibiotics in livestock animals.