The effectiveness of the nutrition education program was evaluated in a randomized trial, with pre- and post-intervention measures of dietary fat intake and plasma total and HDL cholesterol as outcome measures. The study was conducted in Hennepin, Ramsey and Dakota Counties, which had a total adult EFNEP enrollment of about 1,842 people. Because EFNEP enrollment was predominantly female (94 percent), this study was limited to adult women, age 18 or older. All 22 EFNEP paraprofessionals in these counties were randomized to intervention and control group. Randomization was at the level of paraprofessional to simplify program delivery and to minimize contamination between intervention and control groups. The differential changes in fat intake and plasma cholesterol level between the intervention and control groups were estimated using analysis of covariance, adjusting for within paraprofessional correlation and other potential confounders.