heart attack proof. >> heart attack proof. >> we know that if people are eating this way they are not going to have a heart attack. >> esselston thinks heart disease is completely preventable, no matter what sort of family history you have simply by eating right. >> it is a food-borne illness and we're never going to end the epidemic with stents, with bypasses, with the drugs, because none of it is treating causation of the illness. >> he has won some allies, like dr. terry mason. >> is there anybody who doesn't know what it is? >> chief medical officer at cook county hospitals in chicago and the city's former public health commissioner. >> we've eaten ourselves into a problem and we can eat ourselves out of it. >> but it also puts esselston squarely against conventional wisdom which diet only part after heart-healthy lifestyle. >> if doctors said heart disease is a food-borne disease, if you follow this very restrictive diet, in exchange you're not going to have a heart attack.