Acknowledgments
RECRUITMENT
The authors thank the study participants for their engagement and essential contribution to the study. Maha El-Sayed, Bill King and Zac Lewis were instrumental to probiotic formulation considerations and study design. We appreciate Diane Demis and Erin Avery for providing support in recruitment, study logistics, and aiding participant retention and Bryan Merrill for technical scientific support. This manuscript is derived from work presented in the dissertation of Hannah C. Wastyk entitled 