That is a pretty scary statement, but some preliminary evidence does connect the number of meals regularly eaten away from home and the risk of dying from heart disease and cancer.
Everyone enjoys eating out and many restaurants provide high-quality foods. But sadly, as a rule, most meals eaten away from home tend to be higher in calories, fat and sodium and lower in fruits, vegetables, whole grains, dietary fiber and protective substances like antioxidants. Dining out frequently has been associated with an increased risk of being obese, having diabetes, and other chronic disease. Little in known about the connection between the frequency of eating out and the risk of dying. A recent study reported in the Journal of the Academy of Nutrition and Dietetics (Association Between Frequency of Eating Away-From-Home Meals and Risk of All-Cause and Cause-Specific Mortality – PubMed (nih.gov) provided some initial evidence that for people who ate out twice a day, as compared to those who ate out once a week, the former group had a greater risk of dying from heart disease and cancer. This association needs further study, but it does suggest that meals away from home are less beneficial to your health.
