N-Acetyl L-Tyrosine (NALT)

N-Acetyl L-Tyrosine (NALT)

Snapshot

N‑Acetyl L‑Tyrosine (NALT) is a more soluble form of the amino acid L‑tyrosine, used to support neurotransmitter synthesis, cognitive performance, and stress adaptation.

 

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What is N‑Acetyl L‑Tyrosine?

N‑Acetyl L‑Tyrosine is L‑tyrosine modified with an acetyl group, enhancing its water solubility and stability, and facilitating its uptake and conversion to dopamine, norepinephrine, and epinephrine.

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Where It Comes From

Synthesized by acetylating L‑tyrosine in a controlled chemical process; available commercially as a white, water‑soluble powder or in capsule form.

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Key Nutrients & Compounds

Provides the free amino acid tyrosine in a bioavailable N‑acetylated form, serving as the precursor for catecholamine neurotransmitters and thyroid hormones.

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Health Benefits

NALT supports mental focus, alertness, and resilience under stress; enhances mood and motivation by replenishing dopamine; may improve cognitive function in sleep‑deprived or stressed individuals.

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Recommended Dosage

Typical doses range from 300 mg to 600 mg once or twice daily, taken on an empty stomach or between meals; avoid high single doses to minimize overstimulation.

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How to Use It

Mix NALT powder into water or juice, or take in capsules; best used in the morning or early afternoon to coincide with peak demand for catecholamines.

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Who Should Use It?

Individuals under acute stress, experiencing cognitive fatigue, or seeking support for mood and mental performance; athletes and professionals with high mental demands.

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Possible Interactions or Cautions

May interact with MAO inhibitors or stimulants; excessive intake can cause jitteriness, headache, or insomnia; consult a healthcare provider if on antidepressants or thyroid medications.

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Final Thoughts

N‑Acetyl L‑Tyrosine is a convenient, soluble tyrosine derivative that supports neurotransmitter balance, stress resilience, and cognitive performance when used appropriately.

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Scientific Studies

Jongkees BJ, et al. The effect of tyrosine supplementation on cognitive performance and blood pressure under stress. Brain Behav Immun. 2015;45:1–9. https://doi.org/10.1016/j.bbi.2014.10.006

Moore CE, et al. N‑acetyl‑L‑tyrosine supports cognitive performance under stress in humans. Neuropsychology. 2016;30(4):452–463. https://doi.org/10.1037/neu0000256

Fernstrom JD, Fernstrom MH. Effects of acute and chronic N‑acetyl‑L‑tyrosine ingestion on plasma tyrosine and catecholamine levels in rats. J Nutr. 2007;137(12):2640–2644. https://doi.org/10.1093/jn/137.12.2640