Alfalfa (Medicago sativa) is a perennial herb. Its leaves and sprouts supply vitamins, especially vitamin K, along with minerals, chlorophyll, and antioxidants. Traditional medicine has used it as a general tonic and nutrient supplement.
Fiber from alfalfa supports digestive health. It helps maintain cholesterol levels that are already within a normal range, promotes heart health, and bolsters immune function. Some people also turn to it for skin and hair health.
You can buy alfalfa as capsules, tablets, powders, teas, and liquid extracts. Take it with meals to ease absorption and reduce the chance of stomach upset. Follow the dosage printed on the product label, since amounts differ by form.
Heads up. Alfalfa contains vitamin K, which can alter blood clotting. It may make your skin more sensitive to sunlight and could aggravate autoimmune conditions. Talk to a healthcare provider before using alfalfa if you take blood-thinning medication or have a history of lupus or other autoimmune disorders.