With the help of wikipedia.com, here's a little bit about Chia Seeds:
Chia is grown commercially for its seed, a food that is rich in omega-3 fatty acids, since the seeds yield 25-30% extractable oil. Chia seeds are typically small ovals with a diameter of about 1 mm (0.039 in). They are mottle-colored with brown, gray, black and white.
The Chia Pet makes use of chia seeds to sprout.
Chia seed may be eaten raw as a whole seed, providing protein, fats and fiber
In a one ounce (28 g) sample, dried chia seeds contain 9% of the Daily Value for protein (4g), 13% fat (9g) (57% of which is ALA) and 42% dietary fiber (11g), based on a daily intake of 2000 calories. The seeds also contain the essential minerals phosphorus, manganese, calcium, potassium and sodium in amounts comparable to other edible seeds, such as flax or sesame.
Although some research indicates potential for dietary health benefits in certain disease conditions, this work remains sparse and inconclusive.
Chia seeds can be purchased in health food stores or in the health section of your grocery store.