According to the Alliance for Science, approximately 10% percent of Americans over the age of 18 identify as a vegan or vegetarian as of January 2022. The organization’s findings are based on an online survey administered to 930 Americans representative of the U.S. population in terms of gender, education, age, and income.

While many vegetarians (lacto-vegetarians, namely) do eat dairy, some others do not. And vegan diets are the strictest, excluding not only meat, poultry, fish, eggs, and dairy products — but also foods that contain these products.