The more we learn about the science of obesity and metabolism, the more we discover how important it is to create a hospitable home for the bacteria populations that regulate them. New research shows that downing lots of probiotic pills, kombucha and kimchi may do nothing if you're also eating processed foods, since commercial emulsifiers may deplete our systems of these friendly bugs. Off-balance gut bacteria caused by emulsifiers can lead to obesity and even irritable bowel syndrome because of the inflammation it creates. Will you avoid processed foods after hearing about this new study? Have you thought about making your own condiments like mayonnaise? Let us know in the comments.