noun. an essential amino acid found in proteins and needed for growth of children and for protein metabolism in children and adults; abundant in milk and eggs; it is normally converted to tyrosine in the human body.
Example sentences of the word phenylalanine
1. Noun, singular or mass
Keeping your dopamine level high might aid weight loss, but studies need to be done with humans, and it's not known if consuming more phenylalanine will help.
2. Verb, base form
Dogs with a rare genetic disorder known as PKU or phenylketonuria can't process phenylalanine normally, causing toxic levels to build up in the blood stream.
Another primary ingredient in Grenade Fat Burner is phenylalanine, an amino acid.