Plant-based diets in general and certain plant foods in particular may be used to successfully treat Parkinson's disease in part by boosting L-DOPA levels. What about preventing the disease in the first place? See the previous video Preventing Parkinson's Disease With Diet (http://nutritionfacts.org/video/preventing-parkinsons-disease-with-diet/).

The serotonin story I mentioned explaining the crowding out of precursor amino acids at the blood-brain barrier is described in my three-part series The Wrong Way to Boost Serotonin (http://nutritionfacts.org/video/the-wrong-way-to-boost-serotonin/), A Better Way to Boost Serotonin (http://nutritionfacts.org/video/a-better-way-to-boost-serotonin/), and The Best Way to Boost Serotonin (http://nutritionfacts.org/video/the-best-way-to-boost-serotonin/).

More on the risks and benefits of coffee and caffeine in Coffee and Cancer (http://nutritionfacts.org/video/coffee-and-cancer/) and What About the Caffeine? (http://nutritionfacts.org/video/what-about-the-caffeine/)

And more on what fiber can do for us in videos like How Fiber Lowers Cholesterol (http://nutritionfacts.org/video/how-fiber-lowers-cholesterol/), Fawning Over Flora (http://nutritionfacts.org/video/fawning-over-flora/), Boosting Good Bacteria in the Colon Without Probiotics (http://nutritionfacts.org/video/boosting-good-bacteria-in-the-colon-without-probiotics/), and What Women Should Eat to Live Longer (http://nutritionfacts.org/video/what-women-should-eat-to-live-longer/).

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