Chia seeds are the edible seeds of Salvia hispanica, a flowering plant in the mint family native to Central America, or of the related Salvia columbariae of the southwestern United States and Mexico. Chia seeds are oval and gray with black and white spots, having a diameter around 1 millimetre
Chia seeds are a good source of omega-3 fatty acids, fiber, antioxidants, iron, and calcium.
A 28-gram, or 1-ounce, serving of chia seeds also contains 5.6 grams of protein.
Mixed with water, they can replace egg in vegan cooking.