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Also known as: N-Acetyl L-Tyrosine, NALT

More soluble form of L-Tyrosine that contributes to the synthesis of dopamine and norepinephrine, two neurotransmitters that support a healthy mood and mental focus.

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What is N-Acetyl L-Tyrosine?

N-Acetyl L-Tyrosine (NALT) is an acetylated form of the non-essential amino acid L-Tyrosine. The difference between the two forms of tyrosine is that the acetyl group attached to L-Tyrosine should improve the absoprtion and bioavailability of the amino acid in the body.

Non-essential amino acids like tyrosine are typically produced in sufficient quantities by the body without having to obtain it via food or supplementation. It is generated from the conversion of phenylalanine in the body. However, this process does not work in reverse as the body cannot make phenylalanine from tyrosine.

Tyrosine is considered a parent molecule as it is required for the body to produce a number of hormones and neurotransmitters. These include dopamine, epinephrine, norepinephrine, and dihydroxyphenylalanine. The hormones and neurotransmitters are vital to proper functioning of the thyroid, adrenal medulla and the central and peripheral nervous systems. Finally, tyrosine plays a role in the formation of the pigment melanin, which is found in the skin, hair, and lining of the eye.

Where Does It Come From?

The human body can naturally synthesize L-Tyrosine from the amino acid phenylalanine. However, you can obtain varying amounts of it your diet, but most people who are regularly working out hard in the gym simply do not get enough to reap the full benefits that this amino acid has to offer.

The best dietary sources of Tyrosine include meat, dairy (cottage cheese), seafood, oatmeal, peanuts, almonds, and some wheat products.

What does it do?

As mentioned earlier, NALT is needed for the body to produce the neurotransmitter dopamine. Dopamine is often associated with the reward center' of the brain which means when high levels of it are present, you will most likely experience a sensation of joy, happiness or positive reinforcement.

Higher concentrations of dopamine also tend to improve sociability reduce the sensation of pain in the body. On the other hand, when dopamine levels are low, all of these benefits will be negated. This results in a reduction in your ability or drive to do what you normally would, i.e. eat healthy and exercise daily.

Furthermore, there has been a connection shown between dopamine levels and ADHD (attention deficit hyperactive disorder). Low levels of dopamine are typically found in those who experience the symptoms of ADHD. This points to Tyrosine's role in improving and maintaining concentration and focus.

Another important reason to consider supplementing with NALT is that it can aid in preserving lean body mass and promoting fat loss. Tyrosine is closely tied to proper functioning of the thyroid gland and its production of hormones. The thyroid gland plays a role in determining your metabolic rate. So, if its not operating correctly, you most likely wont be burning as many calories as you typically would, which inevitably will lead to excess weight gain. Supplementing with NALT could help to elevate your metabolic rate then by ensuring proper thyroid functioning. The end result being increased lean mass gains and enhanced fat loss.

Finally, its important to mention that Tyrosine is actually less bioavailable in the body during times of heightened stress. If you're constantly worried or experiencing bouts of anxiety, supplementing with NALT may be beneficial to lowering your stress levels and improving your overall mood.

Benefits of N-Acetyl L-Tyrosine

  • Increase mental alertness

  • Improving workout intensity

  • Support a healthy metabolism

  • Delay mental and physical fatigue

  • Lower stress levels

  • Improve focus

  • Ensure proper thyroid functioning


The typical serving size of NALT is between 350-1500mg a day, usually spilt into 350mg at a time. Additionally, you can choose to supplement with it 1-3 times a day.


Focus and motivation are two critical traits to have if you're looking to get the best workout possible. Those who let their attention drift off in the gym typically are not working out as hard as they possibly could. This results in decreased gains and not maximizing your precious time that is spent in the gym. Adding N-Acetyl L-Tyrosine to your supplement arsenal will ensure that you stay focused and committed to your training to you can build muscle and get the physique youve always wanted.

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