Which component of saliva allows the neutralisation of dietary acids to take place?

The correct choice is minerals, as they play a crucial role in the neutralization of dietary acids in saliva. Saliva contains important minerals, primarily bicarbonate ions, which help to buffer acids that are present after eating acidic foods or beverages. By doing so, these minerals assist in maintaining the pH balance in the mouth, protecting dental tissues from demineralization and promoting a healthy oral environment.

Water, while essential for the overall composition of saliva and aiding in various functions such as lubrication and taste, does not directly participate in neutralizing acidity. Antibodies are involved in immune responses and fighting off pathogens present in the oral cavity, but they do not neutralize acids. Similarly, leucocytes, which are white blood cells, play a role in the immune function but are not involved in acid-base balance. Thus, the role of minerals in buffering and neutralizing dietary acids is fundamental to maintaining oral health.