National Vegetarian Day 2024 Theme. National vegetarian week 2024 will start on world vegetarian day (october 1st). Every year on october 1st, world vegetarian day kicks off a month of parties, potluck, presentations, food tasting displays…and lots of friendly discussions!
— october 1 is world vegetarian day on the national day calendar. The theme of national vegetarian week this year is ‘mix it up’.