Is that bag of chips affecting your mood?
The science behind food and mood
Research has shown that what you eat affects how you feel and that is a result of your brain and GI (gastrointestinal tract) tract being in a close relationship to each other
"Here’s how it works: Your GI tract is home to billions of bacteria that influence the production of neurotransmitters, chemical substances that constantly carry messages from the gut to the brain. (Dopamine and serotonin are two common examples.)
Eating healthy food promotes the growth of “good” bacteria, which in turn positively affects neurotransmitter production. A steady diet of junk food, on the other hand, can cause inflammation that hampers production. When neurotransmitter production is in good shape, your brain receives these positive messages loud and clear, and your emotions reflect it. But when production goes awry, so might your mood.
Sugar, in particular, is considered a major culprit of inflammation, plus it feeds “bad” bacteria in the GI tract. Ironically, it can also cause a temporary spike in “feel good” neurotransmitters, like dopamine. That isn't good for you either, says Rachel Brown, co-founder of The Wellness Project. The result is a fleeting sugar rush that is followed shortly thereafter by a crash "that's terrible for your mood," she says.
When you stick to a diet of healthy food, you’re setting yourself up for fewer mood fluctuations, an overall happier outlook and an improved ability to focus, Dr. Cora says. Studies have even found that healthy diets can help with symptoms of depression and anxiety"