Flaxseed (also know as "linseed") is a whole grain rich in healthy essential oils, high-quality proteins, dietary fiber, antioxidants, lignans, vitamins and minerals. It is one of Nature's richest sources of healthy omega-3s. Together, these ingredients leave very little room for "empty" net carbs - in fact, while flaxseed is chock-full of both soluble and insoluble dietary fiber ("complex" carbs), it contains virtually no digestible (i.e., "net") carbs while providing a very low-glycemic index.