Hispanic children and those from low-socioeconomic status are predisposed to unhealthy eating habits and obesity.Aim. to implement an individualized, face-to-face, parent supported, and school-partnership dietetic intervention to promote healthy eating habits and decrease body mass index. Prospective school year dietetic intervention of 101 obese, Hispanic, low-socioeconomic school-age children representative of Monterrey, Mexico, consisted of anthropometrics, dietetic assessment, energy-restriction tailor-made daily menus, and parental education every three weeks. Student’st-test was used for means comparison. A significant decrease was found in body mass index percentile(96.43±3.32to93.42±8.12/P=0.00)and energy intake/day of −755.7 kcal/day(P=0.00). Among other energy dense foods with significant decline in servings/day and servings/week were processed meats(3.13 ± 1.43to2.19 ± 1.04/P=0.00and5.60 ± 1.75to4.37 ± 2.10/P=0.00, resp.), saturated fat(1.47 ± 1.08to0.78 ± 0.79/P=0.00and2.19±2.18to1.1±1.36/P=0.00), sweetened beverages(2.79±1.99to1.42±1.21and6.21±1.72to3.89±2.80/P=0.00), and desserts and refined-grain bakery(1.99±1.54to1.32±1.59and2.85 ± 2.54to1.57 ± 2.20/P=0.00). There was a significant increase in servings/day and servings/week of water(2.98 ± 2.02to4.91 ± 2.37and6.62 ± 2.03to6.87 ± 0.91/P=0.00, resp.) and nutrient dense foods such as fruits(1.31 ± 0.89to1.66 ± 0.96and3.34 ± 2.24to4.28 ± 2.43/P=0.00)and fish and poultry(3.76 ± 2.15to4.54 ± 2.25/P=0.00). This intervention created healthy eating habits and decreased body mass index in a high risk population. Trial registration number:NCT01925976.