Attar Ayurveda Chia Seeds are an excellent source of omega-3 fatty acids, rich in antioxidants, and they provide fiber, iron, and calcium. Omega-3 fatty acids help raise HDL cholesterol, the "good" cholesterol makes your heart healthy.Hair and chia seeds have a major thing in common: protein. Our hair is made up of a protein called keratin while chia seeds are made up of about 23 percent protein. So you're not only ingesting fiber with chia seeds, but you are ingesting their protein, which helps thicken your hair.