The main ingredient in chia pudding is chia seeds. Chia seeds come from the Salvia hispanica plant, native to Mexico and Guatemala, and are known for their high nutritional value. When soaked in liquid, such as almond milk or coconut milk, chia seeds absorb the liquid and form a gel-like consistency, which creates the pudding texture. Chia pudding is popular for its health benefits, as these seeds are rich in omega-3 fatty acids, fiber, protein, and various essential minerals. It is often served as a nutritious breakfast or snack, and can be flavored with fruits or sweeteners.