> One topic that was not mentioned in the article that I have found fascinating is that your gut microbiome can actually affect your cravings It's worth noting

> One topic that was not mentioned in the article that I have found fascinating is that your gut microbiome can actually affect your cravings It's worth noting that the study[1] does not suggest that. It says that there has been some "circumstantial evidence for a connection between cravings and the composition of gut microbiota" and notes that there would be evolutionary pressure on microbes to be able to influence cravings, but gives no evidence on this point. The thing the study was actually researching was ways microbes could influence cravings, not whether or not any of them actually were. Meanwhile, it does appear you can noticeably change the expression of your microbiome by long term changes in your diet, but the effects we've actually found are still fairly subtle (at least in terms of metabolic outputs), and I've found no studies that indicate you can change cravings due to those changes. For example, in [2], "chocolate desiring" subjects had noticeably different microbiomes than "chocolate indifferent" subjects, but that difference was significant even when on the exact same diet (which was necessary for the study's methods). You have to be careful not to extrapolate from actual data to "what makes sense". Spurlock's stuff appeals at a gut instinct level, but that's often the most dangerous kind of thing for science since our brains desperately want to make patterns out of data even when there isn't one. [1] http://onlinelibrary.wiley.com/doi/10.1002/bies.201400071/full http://onlinelibrary.wiley.com/doi/10.1002/bies.201400071/fu... [2] http://pic.plover.com/chocolate.pdf http://pic.plover.com/chocolate.pdf