The key difference between vegans and vegetarians lies in the extent of animal product elimination from their diets and lifestyles. Vegetarians avoid consuming meat, fish, and poultry but may still include animal by-products like dairy, eggs, and honey in their diets. Vegans, on the other hand, completely avoid all animal-derived products. This not only includes food but also extends to lifestyle choices, such as avoiding leather, wool, and products tested on animals. While both diets focus on plant-based eating, veganism takes a more comprehensive stance, often rooted in ethical concerns for animal welfare, environmental impact, and health benefits.