A man who claims to eat meals from the fast food chain McDonald’s “every single day,” has managed to lose 20 pounds. Even though the man says he started working out and credited exercise with the weight loss, the story of someone losing weight while maintaining a diet largely consisting of McDonald’s fast food is remarkable. And, even more remarkable, is that by sheer coincidence, the man is McDonald’s CEO Don Thompson! How could McDonald’s menu of cheeseburgers, large sodas, French fries and milkshakes possibly be that bad if you can lose significant amounts of weight while on a McDiet? …