Widely grown in Israel, the seeds of blue lupin are sometimes roasted and mixed with malt grains and infused in boiling water to produce a coffee-like but caffeine-free hot beverage. Nutritionally, it is worth noting that lupins are incredibly high in protein, not to mention that they are also one of the highest sources of dietary fiber, which in turn cleans your colon, and slows the rate that sugar is absorbed into the bloodstream