Non-essential amino acids are those that the body can synthesise on its own without having to get them from dietary proteins. The non-essential amino acids can be produced via different energy pathways within the body or by using the essential amino acids as starting material. However, under special circumstances or in times of illness or dysfunction, some non-essential amino acids can become essential and therefore are known as conditionally essential.
Essential Amino Acids
Essential amino acids are, as the name suggests, essential for humans in order maintain health and bodily functions. The essential amino acids cannot be synthesised within the body and therefore need to be supplied from the diet from foods such as dietary proteins.