HCO3-

HCO₃⁻, or bicarbonate ion, is a vital component in maintaining your body's acid-base balance. It acts as a buffer, helping to neutralize excess acids in the blood, which keeps your pH level stable. Bicarbonate is produced mainly by the kidneys and intestines and is also present in the blood. Its primary role is to prevent your blood from becoming too acidic or too basic, ensuring that your body's functions, like breathing and metabolism, operate correctly. In summary, bicarbonate is essential for maintaining a healthy, balanced internal environment.