What types of food constitutes a healthy dinner for someone on a diet?

Think fiber: Most diets fail due to limited nutritional value and social value. Increasing fiber through more vegetables, more foods with vibrant colors and texture, can fill the plate and the need for a longer meal experience. Focus on taste and slow pleasures. Fatty and meat based portions of any meal will sabatoge the process. Use lean meats and fish to accentuate one quarter of the plate.