What is the term for someone who abstains completely from all animal products?

The term for someone who abstains completely from all animal products is "vegan." Vegans do not consume meat, dairy, eggs, or any other products derived from animals. This lifestyle choice often extends beyond diet to include avoiding animal-based products in clothing, cosmetics, and other consumer items, reflecting a commitment to animal rights, health, or environmental concerns.

In contrast, vegetarians may eat dairy products and eggs, pescatarians include fish in their diet, and flexitarians primarily follow a vegetarian diet but occasionally consume meat. These definitions highlight the distinctiveness of a vegan lifestyle, reinforcing why "vegan" is the correct term for someone who avoids all animal products entirely.