uccmal is right. it is the refined food that is the problem
I recommend folks to watch this video by Dr Robert Lustig
The coming obesity epidemic has lot of ramifications. Berkshire may even sell KO stake in not so distant future.
The recipe for disaster is this, productivity, over production, portions increase, over consumption, lethargy, addiction to video games/facebook/modern technology, hawking of junk foods to kids, lack of exercise, stressed/overworked parents, modern convenience/comforts, govt policy a.k.a conspiracy (subsidizing food costs, making fresh grown vegetable 5-10 times more expensive than soda/chips), fat parents spawning fat kids... vicious cycle repeats
fact is, there is no easy solution. one side there is talk of freedom to choose, other side there is talk of nanny state. I was talking to a group of doctors and one said, the sad truth is, you can let a man die in cold under a bridge of hunger. but if he is sick, he can be admitted and get treatment for free. So overweight/obesity is like finance, private profits , socialized risk. Bravo.
As a Berkie shareholder & WEB/Munger fan, I'm ashamed that Buffett will drink 6-10 cans of coke and eat chocolates in front of adoring fans. Is he setting a right example? No one knows the exercise he is doing to burn those calories.