Foods to Fight Fatigue | Yogurt | Caring.com: "Yogurt also contains probiotics, beneficial bacteria that help maintain a healthy gut ecosystem by protecting against pathogens and helping your body eliminate harmful bacteria. Like fiber, probiotics are a powerful digestive aid. Recent research from the University of Toronto suggests that probiotics can help ease symptoms of chronic fatigue syndrome; in the study, probiotic supplementation appeared to boost levels of the amino acid tryptophan in the brain. Tryptophan is famously known as the component in turkey that makes you sleepy, but it's also a precursor of serotonin, a neurotransmitter that helps induce sleep and promote feelings of calm and tranquility, helping to combat both physical and emotional fatigue."
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