Β9, also known as Vitamin B9 or folate, is a water-soluble vitamin that plays a crucial role in cell division and the production of DNA. It is essential for the growth and development of tissues, making it particularly important during pregnancy for fetal development. This vitamin is found in various foods, including leafy green vegetables, legumes, nuts, and fortified cereals. A deficiency in Β9 can lead to health issues such as anemia and increased risk of neural tube defects in newborns. Therefore, adequate intake of Β9 is vital for overall health and well-being.