(ABC NEWS) -- The author of a new book argues that what you feed your gut, which he calls your "second brain," can have an effect on your mood, your weight and your immune system.
His diet includes staples such as fruits and vegetables, as well as dark chocolate, turmeric and fermented foods.
"Fermented foods are absolutely packed with good bacteria," Mosley said. "So every single teaspoon of that stuff has got tens of billions of living bacteria."
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