Multiple sclerosis (MS) is an autoimmune disorder that affects about 400,000 people in the United States and approximately 2.5 million people worldwide.
MS affects the central nervous system. Symptoms often include muscle weakness, burning sensations, numbness, chronic pain, poor balance and coordination, fatigue, and difficulty concentrating.
In fact, as many as 9 out of 10 people with MS have fatigue, and the symptom is usually difficult to treat. Older research has suggested that a daily dose of 45 grams of dark chocolate may improve chronic fatigue syndrome. Dark chocolate contains 70–85 percent cocoa.