This study conducted an 8-week workplace nutrition education intervention to examine the effects of the intervention on metabolic syndrome factors associated with employees. A historical intervention was designed to recruit adults with a body mass index level of >22 and without any endocrine disorder from a community in Yilan, Taiwan. The intervention group was recruited between 2010 and 2012 and received an 8-week intervention, during which dietitians delivered a nutrition education session and a one-on-one dietary guidance session on a weekly basis. The age- and sex-matched control group (n = 34) was recruited between 2014 and 2015 to analyze the metabolic syndrome variables. The metabolic syndrome variables included blood pressure, blood sugar, serum lipid profile, and waist circumference.

Content of classes Week1 Things that you must know during the weight reduction study period Week2 Daily individual calorie requirement: what are the main food groups? Week3 How to record the daily diet after the weight reduction program Week4 Food serving size and replacement Week5 The principles of eating out Week6 Physical activity advice (delivered with health education flyers to the participants)

Inclusion Criteria:

• ≥ 18 years old
• BMI of ≥ 22

Exclusion Criteria:

• History of critical illness
• Having been diagnosed with at least one endocrine disorder