1. Hill, C. et al. Expert consensus document. The International Scientific Association for Probiotics and Prebiotics consensus statement on the scope and appropriate use of the term probiotic. Nat. Rev. Gastroenterol. Hepatol. 11, 506–514 (2014).
2. Global Probiotic Market Is Set For Rapid Growth and is Expected To Reach Value Around USD 65.87 Billion by 2024 (Zion Market Research, 2018).
3. Clarke, T. C., Black, L. I., Stussman, B. J., Barnes, P. M. & Nahin, R. L. Trends in the use of complementary health approaches among adults: United States, 2002–2012. Natl. Health Stat. Report. 79, 1–16 (2015).
4. Hoffmann, D. E. et al. Probiotics: achieving a better regulatory fit. Food Drug Law J. 69, 237–272 (2014).
5. Draper, K., Ley, C. & Parsonnet, J. Probiotic guidelines and physician practice: a cross-sectional survey and overview of the literature. Benef. Microbes 8, 507–519 (2017).