The purpose of this study is to evaluate whether exposure to nutrition information with or without nutrition education would influence college students' dietary choices and improved the previous photographs-based dietary assessment tools.

1. The investigators improved the previous photographs-based dietary assessment tools and utilized the improved approach to evaluate participants' calorie and nutrients intake.
2. A pre-post non-controlled study design was implemented in the medical college and was divided into three stages: just recording the dietary selection in the three meals daily, recording the dietary selection with the provision of menu labeling accompanying with or without nutrition education. The investigators adopted photographs-based dietary assessment tools and a mobile phone application 'WeChat' was utilized as the photographs and nutrition knowledge transfer platform. Two professional researchers respectively read the received photographs and calculated participants' calorie and nutrients intake.

Inclusion Criteria:

• Grade 2012, 2013 undergraduate students and Grade 2013 graduate students

Exclusion Criteria:

• Participants who sent the photographs less than six times in any one of the three meals at any stage

  • Participants who did not complete their questionnaires

    • Participants who withdrew from the experiment at any stage