A worksite programme significantly alters nutrient intakes

Public Health Nutr. 2010 Oct;13(10):1629-35. doi: 10.1017/S136898000999303X. Epub 2010 Jan 15.


Objective: To examine whether a worksite nutrition programme using a low-fat vegan diet could significantly improve nutritional intake.

Design: At two corporate sites of the Government Employees Insurance Company, employees who were either overweight (BMI > or = 25 kg/m2) and/or had type 2 diabetes participated in a 22-week worksite-based dietary intervention study.

Setting: At the intervention site, participants were asked to follow a low-fat vegan diet and participate in weekly group meetings that included instruction and group support (intervention group). At the control site, participants received no instruction (control group). At weeks 0 and 22, participants completed 3 d dietary records to assess energy and nutrient intake.

Subjects: A total of 109 participants (sixty-five intervention and forty-four control).

Results: In the intervention group, reported intake of total fat, trans fat, saturated fat and cholesterol decreased significantly (P < or = 0.001), as did energy and protein (P = 0.01), and vitamin B12 (P = 0.002), compared with the control group. Intake (exclusive of any use of nutritional supplements) of carbohydrate, fibre, vitamin C, magnesium and potassium increased significantly (P < or = 0.0001), as did that for beta-carotene (P = 0.0004), total vitamin A activity (P = 0.004), vitamin K (P = 0.01) and sodium (P = 0.04) in the intervention group, compared with the control group.

Conclusions: The present study suggests that a worksite vegan nutrition programme increases intakes of protective nutrients, such as fibre, folate and vitamin C, and decreases intakes of total fat, saturated fat and cholesterol.

Publication types

  • Controlled Clinical Trial

MeSH terms

  • Adult
  • Diabetes Mellitus, Type 2 / diet therapy*
  • Diet / standards*
  • Diet Records
  • Diet, Fat-Restricted*
  • Diet, Vegetarian*
  • Energy Intake*
  • Female
  • Health Promotion
  • Humans
  • Male
  • Micronutrients / administration & dosage
  • Middle Aged
  • Occupational Health Services*
  • Overweight / diet therapy*
  • Social Support
  • Workplace


  • Micronutrients