<unk>  is a rare, sometimes fatal neurological condition linked to the ingestion of contaminated L-tryptophan, a dietary supplement and essential amino acid. The risk of developing EMS increases with larger doses of tryptophan and increasing age. Some research suggests that certain genetic polymorphisms may be related to the development of EMS. The presence of<unk>  is a core feature of EMS, along with unusually severe<unk>  (muscle pain).
Eosinophilia–myalgia syndrome
CREST syndrome
Hopkins syndrome
Crome syndrome
Papular purpuric gloves and socks syndrome
Overlap syndrome
MASA syndrome
Sopite syndrome