N-Acetyl L-Tyrosine (NALT) is a “brain supplement,” and derivative of L-Tyrosine. NALT is more soluble and heat stable than its close relative, and contains acetic acid.
Because of this, proponents believe that NALT may be more bioavailable than L-Tyrosine, and absorbed more easily by the body as well.
Unfortunately, there’s little scientific evidence to support the assertion that NALT is a more effective alternative to L-Tyrosine, though, the effects of the latter are better documented.
What is N-Acetyl L-Tyrosine?
Like L-Tyrosine, NALT is an amino acid, one of the building blocks of protein. We can absorb Tyrosine through our diets, in foods like meats, fish, eggs, and nuts, but can receive a more potent dose through supplementation.
Supplementing with Tyrosine causes it to act as a stimulatory nootropic that boosts cognition and mood while decreasing stress.
People with Tyrosine deficiencies use it to treat the effects of mood disorders (depression), attention disorders (ADD/ADHD), sleep disorders (narcolepsy, sleep deprivation), and neurological disorders (Parkinson’s, Alzheimer’s).
Tyrosine is also said to be somewhat useful for counteracting alcohol/cocaine withdrawal, ED, wrinkles, and a host of other ailments. Many of the claims are anecdotal or supported by only slim evidence.
The mood and stress altering properties of Tyrosine, however, show much more consistency across research results.
The common wisdom is that NALT affords all the same benefits as Tyrosine, but is more soluble than normal Tyrosine supplements, allowing the body to break it down in the kidneys and supply a greater amount of the stress relieving amino acids to the body.
Studies on this topic are inconclusive, though, with at least one flatly stating: “the usefulness of NAT and NAC as precursors for the corresponding amino acids in humans is not apparent.”
Regardless, NALT, like Tyrosine, is a legal dietary supplement. It is most commonly found in capsule form in varying mg amounts.
Other Names for N-Acetyl L-Tyrosine
Tyrosine and NALT might also be referred to by common names like Tirosina, Tyr, and Tyrosinum, or other scientific names such as 2-Acetylamino-3-(4-Hydroxyphenyl)-Propanoic Acid.