Debate over the association between food away from home and obesity has not been resolved yet. Some studies suggested that there are significant effects of different sources of foods on Body Mass Indices, and others refuted the result. Therefore we present new evidence how the male and female obesity are related with the different sources of foods. Our result shows that male obesity is strongly related with quantity of food at home (p < 0.01) and food away from home (p < 0.01) while none of the foods shows relationship with female obesity. Food away from home has significantly higher odd ratio of male obesity prevalence than that of food at home. We also found that more energy dense and larger quantity of food away from home cause male obesity. And this result supports the expansion of nutrition labeling at restaurants.