Peanuts are a popular crop produced all over the globe. Apart from oil, peanut by-products include numerous additional useful components such as proteins, fibers, polyphenols, antioxidants, vitamins, and minerals that may be added as a functional ingredient to many processed meals. It was recently discovered that peanuts are high in substances including resveratrol, phenolic acids, flavonoids, and phytosterols, which help to prevent cholesterol absorption from the diet. It's also rich in Co-enzyme Q10 and includes all 20 amino acids, with arginine being the most abundant. These bioactive chemicals have been shown to have disease-fighting effects and are believed to help people live longer. The content of these beneficial chemicals has increased as a result of processing techniques such as roasting and boiling. The purpose of this article is to provide a review of peanut bioactive components and their health benefits.