Nutri-Flax is a high-quality fiber supplement containing both soluble and insoluble fiber, and yielding an extraordinary 39mg of lignans per level tablespoon. It is a certified-organic, finely ground, low-fat flax seed fiber, processed and packaged without the damaging effects of light and oxygen. Flax seeds vary according to seed variety and from crop to crop. The texture of this all-natural product may vary depending upon the mucilage content of the original seeds. Changes in viscosity are natural and do not affect the nutritional value of this product.