The reason Chia seeds are so beneficial is due to them being rich in fiber, omega-3 fats, protein, vitamins and minerals such as (1):
Dietary fiber (11g – 42% recommended daily value)
Protein (4.4g – 9% RDV)
Omega-3 fatty acids (4915 mg)
Omega-6 fatty acids (1620 mg)
Calcium (77 mg – 18% RDV)
Copper (0.1 mg – 3% RDV)
Phosphorus (265 mg – 27% RDV)
Potassium (44.8 mg – 1% RDV)
Zinc (1.0 mg – 7% RDV)
Chia also contains essential fatty acids alpha-linolenic and linoleic acid, mucin, strontium, Vitamins A, B, E, and D, and minerals including sulphur, iron, iodine, magnesium, manganese, niacin, thiamine, and they are a rich source of anti-oxidants.