树立正确的便便界“颜色观”

参考文献：

1.WGO 2011 Global Guideline: Probiotics and Prebiotics.

2.Haller, D., J. M. Antoine, S. Bengmark, P. Enck, G. T. Rijkers and I. Lenoir-Wijnkoop (2010). “Guidance for substantiating the evidence for beneficial effects of probiotics: probiotics in chronic inflammatory bowel disease and the functional disorder irritable bowel syndrome.” J Nutr 140(3): 690S-697S

3.Rowland, I., L. Capurso, K. Collins, J. Cummings, N. Delzenne, O. Goulet, F. Guarner, P. Marteau and R. Meier (2010). “Current level of consensus on probiotic science–report of an expert meeting–London, 23 November 2009.” Gut Microbes 1(6): 436-439.

4.2004 H.M. Timmerman Monostrain, multistrain and multispecies probiotics—A comparison of functionality and efficacy.