Today on The Gist, it's an episode that comes from the gut. First, reporters Erin Quinn and Chris Young of the Center for Public Integrity explain how companies have exploited a decades-old loophole in FDA approval of new food additives. Their article is called "Why the FDA Doesn't Really Know What's in Your Food." And, in another installment of "Is That Bulls--t?" Mike asks Maria Konnikova of the New Yorker if the science backs up the hype around healthy bacteria. For the Spiel, Mike quacks a joke. Today's sponsor: Stamps.com. Sign up for a no-risk trial and get a $110 bonus offer, when you visit Stamps.com and enter promo code TheGist. Join Slate Plus! Members get bonus segments, exclusive member-only podcasts, and more. Sign up for a free trial today at http://www.slate.com/gistplus.
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