Flax seeds, also known as linseed, are the seeds of a flowering plant which is grown around the world for food, oil, and fiber. Linen is the textile produced from flax fibers. These seeds are cultivated in two varieties – brown flax and golden flax, nutritionally very similar to each other. Extremely high in lignans (polyphenols), high in protein, fiber, B vitamins, thiamine, magnesium, potassium, and phosphorus, flax seed is typically incorporated into foods as a healthful additive. Flax seed is eaten either whole or ground and is frequently touted for its digestive health benefits, often used in smoothies, granolas/cereals, and baked goods such as muffins, cookies, and sweet and savory breads.