Inositol is a type of sugar alcohol that plays a crucial role in cellular processes. It is often found in foods like fruits, beans, grains, and nuts. Inositol is important for the formation of cell membranes and is involved in signaling pathways that help regulate various bodily functions. In addition to its natural occurrence, inositol is available as a dietary supplement. It is commonly used for its potential benefits in managing conditions such as anxiety, depression, and polycystic ovary syndrome (PCOS). Research suggests that inositol may help improve insulin sensitivity and support overall mental health.