This study is a nutritional intervention in voluntary workers with abdominal obesity (waist circumference ≥102cm and ≥88cm). The intervention is divided into two phases: the intensive one has a duration of 6 months and consisted in a 4 face-to-face sessions with 9 online or telephone contacts based on the use of nutritional counseling \[Academy of Nutrition and Dietetics, 2013\] and the second phase: consisted in a 3 months' follow-up with 2 telephone contacts and a final visit face-to-face. The investigators used the Cognitive Behavior Therapy process as a theoretical framework, and also used the intervention comprised sessions designed to promote motivation, social support, self-regulation to promote the eating behavior change process. The participants were measured weight loss, waist circumference, and the lipid profile change, pre-intervention, and after six and nice months post-intervention.