Sabja seeds are most nutritious when soaked in water and consumed. They begin to swell at the touch of water, with a translucent white film coating each black seed, and they become twice their size. You can soak about two teaspoons of sabja seeds in one cup of warm water for about 15 minutes. Warm water causes the seeds to fully swell up releasing antioxidants and beneficial digestive enzymes. These fragrant seeds do not really have a distinct taste and can be added to a variety of dishes for a nutrition boost.