Flaxseed is a plant-based food that provides healthful fat, antioxidants, and fiber. Some people call it a “functional food,” which means that a person can eat it to boost their health. People grew flax as a crop in ancient Egypt and China.
Flaxseed is commonly used to improve digestive health or relieve constipation. Flaxseed may also help lower total blood cholesterol and low-density lipoprotein cholesterol levels, which may help reduce the risk of heart disease.