1) The data is only shared with Chinese researchers or Chinese research institutions. Foreign researchers are also not allowed in the applicant's working group.

2) The data obtained should be properly preserved. Without permission, it shall not be distributed to any third party as a whole or any other transformation form including unit conversion, medium conversion or measurement transformation.

3) Mark the source of the data in all research results produced using the data and submit a copy of research paper to the Data Center for archiving.

4) When publishing a paper, cite the article specified by the data provider” The association of weight change pattern with diabetes, hyperlipidemia and fatty liver independent of the attained weight: A case study from Internet-Based Dietary and Lifestyle Questionnaire (IDQC) data sharing”. And explain the data source in the paper “Ackowlegment”: Data source: NHAP, department of nutrition and food hygiene at the school of public health, Harbin Medical University.

5) Timely feedback of problems and suggestions during using data to the "platform center".