National Chia Day is celebrated annually on March 23 in the United States, honoring the nutritional benefits of chia seeds. These small seeds, originating from the minty desert plant Salvia hispanica native to southern and central Mexico, have been recognized as a superfood due to their rich content of vitamins, minerals, proteins, fibers, and omega-3 fatty acids. Historically, chia seeds were used by ancient Mayans and Aztecs as a source of energy during long travels. The day serves as an appreciation for the planet's provision of these nutritious seeds, which were popularized in modern times following a resurgence in interest in plant-based diets. Celebrations may include sharing recipes, promoting the health benefits of chia seeds, and encouraging their incorporation into daily meals.