It is necessary to pay attention to healthy eating habits and attitudes toward health functional foods at a time when the incidence of diseases increases exponentially due to side effects of westernized eating habits. The purpose of this study is to clarify the effect of healthy eating habits and attitudes toward health functional foods on mood states of college students and the elderly. As a result of the analysis, in the elderly, the explanatory power for vitality emotion was lower than that of college students, and only healthy eating habits were factors that significantly explained. For anxiety-depression, it was found that health eating habits could explain the decrease in anxiety-depression emotions even less only in the elderly, and for anger emotions, neither college students nor the elderly showed significant explanatory power. This suggests that it is necessary to further research and analyze the experimental and practical effects based on a wider group and various emotions on how health functional foods and healthy eating habits affect emotions.