Vegetarianism is the practice of abstaining from the consumption of meat (red meat, poultry, seafood, and the flesh of any other animal). Vegetarianism may be adopted for various reasons. Objections to eating meat might arise out of concerns for animal welfare, animal rights, or be borne out of religious beliefs. Other motivations for vegetarianism include health-related, environmental, cultural, aesthetic or economic ones.

Various notable people who have been reported to have adhered to a vegetarian diet at some point during their life, such as:

• Mahatma Gandhi, Indian civil rights activist and political ethicist
• Voltaire, French philosopher
• Nikola Tesla, Serbian-American inventor

Although no U.S. president has been a vegetarian during their time in office, various vegetarian U.S. politicians have run for the office of President, such as Cory Booker, Ben Carson and Dennis Kucinich.

Will there be a sitting U.S. president who is vegetarian during their time in office, by the end of 2036?

This resolves positively if any sitting U.S. president, during their time of holding office, claims that they adhere to any vegetarian diet. A vegetarian diet includes ovo-lacto vegetarianism, lacto-vegetarian and veganism.