Tyrosine is the amino acid neurons turn into norepinephrine and dopamine. Norepinephrine and dopamine
are excitatory neurotransmitters that
are important in motivation, alertness, concentration and memory.
Beets: Betaine, an amino acid naturally present in certain vegetables, particularly beetroot (beets), is an antidepressant of the first order. Betaine acts as a stimulant for the production of SAM-e (S-adenoslmethionine). The body cannot do without SAM-e, which it produces.