Basil is considered one of the healthiest herbs. It's best when fresh, exuding a sweet, earthy aroma that indicates not only the promise of pleasantly pungent flavor, but an impressive list of nutrients. Vitamin K, essential for blood clotting, is one of them. Just two tablespoons of basil provides 29 percent of the daily recommended value.
Basil also provides vitamin A, which contains beta-carotenes, powerful antioxidants that protect the cells lining a number of numerous body structures, including the blood vessels, from free radical damage. This helps prevent cholesterol in blood from oxidizing, helping to prevent atherosclerosis, heart attacks, and stroke. (1) See Here.
Research indicates that there may be several health benefits associated with basil.
A study by researchers at Purdue University revealed that basil "contains a wide range of essential oils, rich in phenolic compounds and a wide array of other natural products including polyphenols such as flavonoids and anthocyanins." (2) See Here.