Since 2005 Christine has been cooperating with Prof. K. De Meirleir to improve the fatigue and the symptoms associated with the chronic fatigue syndrome (CFS/ME). It is striking that the symptoms of most CFS/ME patients ease just by applying an adapted dietary scheme. Most of the time the food anamnesis will point at an intolerance to milk or dairy products, certain cereals and/or fruits dating back to infancy. An aversion to certain food can indicate an intolerance to certain food products. This may be a sensitivity to lactose and/or casein, fructose and/or citric acid. Coffee and certain fats are often badly tolerated, which may be indicative for an impaired liver function. What is more, most ME patients are also hypersensitive to biogenic amines (histamine and tyramine) and alcohol.