This document discusses how social factors and modern diets influence food choices. Low-income groups have more limited and less nutritious diets due to cost, accessibility, and lack of knowledge barriers. They consume more energy-dense, nutrient-poor foods and develop health issues earlier. Modern diets consist of "junk foods" that are high in calories but low in nutrients. People's diets reflect the times and environments in which they live, with urbanization leading to increased risk of obesity and other chronic diseases. Addressing social needs is important to improving health inequalities related to diet.