Lysine deficiency may lead to Anemia -- a condition in which red blood cell levels are unusually low. Symptoms associated with anemia include pale skin, dizziness, pronounced fatigue, headache, cold extremities. Lysine deficiency also may result in immunodeficiency. Low Lysine levels have been found in patients with Parkinson's, hypothyroidism, kidney disease, asthma and depression
Industrially, L-lysine is usually manufactured by a fermentation process using Corynebacterium glutamicum.