The flax plant is famously used to make linen cloth, but also makes some nutritious seeds to boot. Flax seeds are often used for their binding properties when ground and soaked, creating a viscous gel.
Rich in most essential minerals, flax seeds contain more than the daily quota for 5 in just 100g. Also rich in the omega-3 fatty acid ALA as well as powerful phytonutrients like lignans shown to aid in preventing various pathologies.