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*N-Acetyl Tyrosine, 350mg x 120CapsJarrow Formulas

N-Acetyl Tyrosine, 350mg x 120Caps
N-Acetyl L-Tyrosine is a more rapidly absorbed and bioavailable form of the amino acid L-tyrosine, and is less prone to urinary excretion. Studies suggest that L-Tyrosine may have particular benefits for mental health, mental function and memory.


Testimonials report...

..."Head feels clearer, and thoughts come easier."

..."This does a good job of keeping me alert. I feel a greater sense of wellbeing and calmness when taking this product."

..."This version of Tyrosine works much better than regular Tyrosine I've tried. I highly recommend this product."


No product offered for sale is intended to diagnose, treat, cure or prevent any disease. You should always seek advice from your professional healthcare provider before taking any medication. Always read the details and instructions on the label, keep the tub tightly sealed and out of the reach of children.
Product Code: JRW436
SRP £17.05
BigVits Price
£13.65
2 - 3£13.17
4 +£12.81
Best Before
Sep 2018
Shipping Weight
150 g
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Product Details

Jarrow Formulas

N-Acetyl Tyrosine

350mg x 120 Capsules 

Description

 350 mg N-Acetyl Tyrosine

Supports Brain Function

Dietary Supplement

 N-Acetyl Tyrosine is an acetylated derivative of amino acid L-tyrosine. Ordinary L-tyrosine is less stable and also less soluble in water, which may result in reduced bioavailability. Acetylation enhances the solubility and stability of certain amino acids.

N-Acetyl Tyrosine supports brain function by supporting the synthesis of the catecholamines norepinephrine and dopamine (neurotransmitters).

 Suggested Use

 Take 1 capsule 1 or 2 times per day, preferably with juice on an empty stomach or as directed by your qualified health care consultant.

 

No product offered for sale is intended to diagnose, treat, cure or prevent any disease. You should always seek advice from your professional healthcare provider before taking any medication. Always read the details and instructions on the label, keep the tub tightly sealed and out of the reach of children.

Supplement Facts

Supplement Facts

Serving Size:  1 Capsule

Serving Per Container: 120

 

Amount Per Serving

% DV

Vitamin B6 (as pyridoxine hydrochloride)

5 mg

250%

N-Acetyl Tyrosine

350 mg

*

* Daily Value not established.

 Other Ingredients

 Cellulose, magnesium stearate (vegetable source) and silicon dioxide. Capsule consists of gelatin.

No wheat, no gluten, no soybeans, no dairy, no egg, no fish/shellfish, no peanuts/tree nuts.

 Warnings

 Note: If you have a medical condition (especially bipolar, high blood pressure, or a history of malignant melanoma), are pregnant, lactating, trying to conceive, are under the age of 18, or are taking medications (especially MAO inhibitors), consult your qualified health care practitioner before using this product.

Keep out of the reach of children.

 

 

No product offered for sale is intended to diagnose, treat, cure or prevent any disease. You should always seek advice from your professional healthcare provider before taking any medication. Always read the details and instructions on the label, keep the tub tightly sealed and out of the reach of children.

Testimonials

These testimonials are the personal views of other users and do not represent a medical opinion.

Reviews & Testimonials

 

N-Acetyl Tyrosine over L-Tyrosine

From Oregon

This type of Tyrosine is ideal for anyone wanting optimal benefit. The N-Acetyl Tyrosine is soluble in water unlike the L-Tyrosine. Also the dosing is much smaller considering the absorption is greater. I liked that Jarrow put Vitamin B6 in it because that vitamin is needed for Tyrosine's conversion to certain neurotransmitters. I recommend this whether you take it in capsule form or open up the capsules and take it as a powder. Any N-Acetyl Tyrosine is worth the extra cost compared to the L-Tyrosine in my opinion.

 Works perfectly

From California

This version of Tyrosine works much better than regular Tyrosine I've tried. I highly recommend this product.

 precursor for dopamine and thyroid hormone

From New Mexico

Dopamine is responsible for the feeling of well-being and prevention of depression. As there are no drugs available to boost this neurotransitor for non-Parkinson's patients, tyrosine is the only substance available to take to boost these levels. (and the n-acetyl form has shown to be most effective). Most commonly depression is related to a serotonin deficiency, but the second most common neurotransmitter assisting depression is dopamine. If 5HTP doesn't help (to raise serotonin levels) then the logic next step is to try tyrosine. It's best taken on an empty stomach. It's good to boost thyroid hormone in patients with hypothyroid as well.

 Great Product

From

This does a good job of keeping me alert. I feel a greater sense of well being and calmness when taking this product. I take 2 capsules in the morning 30 - 45 mins before food.

 jarrow n-acetyl tyrosine review

From Puerto Rico

Head feels clearer, and thoughts come easier.

 

 

No product offered for sale is intended to diagnose, treat, cure or prevent any disease. You should always seek advice from your professional healthcare provider before taking any medication. Always read the details and instructions on the label, keep the tub tightly sealed and out of the reach of children.

More Information

 

QUICK

Reference Guide

healthy living through science & education


N-Acetyl Tyrosine

 

L-Tyrosine is an important precursor to the brain neurotransmitters dopamine, epinephrine, and norepinephrine. If intake from dietary sources is insufficient, phenylalanine can be used for tyrosine biosynthesis with the help of the necessary cofactors iron, vitamin C, and niacin. The thyroid hormones triiodothyronine (T3) and thyroxine (T4) are also derived from tyrosine.

 

As a component of protein, tyrosine content varies greatly in foods. In general, meats contain higher concentrations than vegetables or grains, with wheat germ being one exception.  As an individual amino acid, tyrosine possesses poor water solubility. This is the primary reason why some parenteral nutrition products use N-acetyl-L-tyrosine (NAT) instead of L-tyrosine itself.

 

Despite the presence of active transport mechanisms for amino acids in intestinal enterocytes, the poor solubility of L-tyrosine may hinder its bioavailability.  Experientially, users familiar with taking L-tyrosine often report heightened effects when taking a similar quantity of NAT. It has also been reported that, as an addition to drinks or shakes, NAT offers a more palatable taste than tyrosine.

 

Brain Metabolism

 

As with the intestines, there are active transporters that allow tyrosine to cross the blood-brain barrier.  However, these transport mechanisms are not specific to tyrosine and ferry other similar amino acids into the brain as well.  Once in the brain, tyrosine can be used as a feedstock for the neurotransmitters dopamine, epinephrine, and norepinephrine.

 

With age, however, brain dopamine production often declines.  In the basal ganglia, dopamine deficiency can lead to motor function decline related to coordination, reflexes, and gait. It is not entirely clear why this occurs, but one hypothesis posits that decreased levels of antioxidant enzymes, allow byproduct hydrogen peroxide accumulation around dopamine-producing cells, leading to damage.

 

Aside from assisting in coordination and tissue repair (by aiding growth hormone release), dopamine promotes the pleasure response to activities like eating and sex.  One theory suggests that some cases of overeating may be due to poor dopamine production and/or regulation in the brain.  NAT may provide nutritional support in the brains response to falling dopamine levels.

 

Jarrow

F O R M U L A S

 

Mood: Food Matters

 

Sadness and discouragement are natural responses to disappointment or loss. Nevertheless, in our modern society, mood is sometimes off-kilter due to diet and lifestyle imbalances. In fact, it is not uncommon for people who report frequent cases of the blues to have diets deficient in vitamins, minerals, and protein ,but high in refined carbohydrates.

 

Inadequate protein intake, excessive stimulant intake or chronic stress can not only lead to reduced levels of dietary tyrosine but also to depressed levels of tyrosine-dependent hormones and neurotransmitters.  In some cases a vicious cycle between poor diet and poor mood occurs. Biochemically, those with low spirits may have elevated levels of the norepinephrine metabolite, 3-methyl4-hydroxy-phenylglycol (MHPG).  In some cases elevated levels of this biomarker indicate depressed tyrosine metabolism.

 

As a precursor for excitatory neurotransmitters, tyrosine is an important reserve in the bodys response to stressful conditions. In studies performed at MIT, animals given extra tyrosine were better able to control stress and avoid depression; human trials with soldiers undergoing intense physical training bolstered these results. Several studies have found tyrosine useful during conditions of stress, cold, fatigue, prolonged work, and sleep deprivation by helping to support balanced stress hormone levels, proper metabolism, and robust cognitive performance under adverse conditions.  Supplemental NAT may help promote tyrosine balance.

 

Tyrosine Sufficiency

 

Tyrosine plays an important role in cell signaling by regulating many cellular processes via tyrosine kinase receptors (including sensitivity to insulin).  Tyrosine is also the precursor to the pigment melanin, which is used by the body in UV radiation protection.  There is also some recent evidence suggesting that melanin acts as a powerful chelating agent in the body, as it helps to sequester toxic heavy metals. Tyrosine deficiency may cause edema, weakness, impaired liver function and loss of muscle or other tissues.  Low protein diets may produce marginal deficiency states.

 

N-Acetyl Tyrosine is an acetylated derivative of the amino acid L-tyrosine. Ordinary L-tyrosine is less stable and also less soluble in water, which may result in reduced bioavailability. Acetylation enhances the solubility and stability of certain amino acids. Jarrow Formulas  N-Acetyl Tyrosine also contains vitamin B6 to promote the conversion of tyrosine to neurotransmitters and hormones in the body.

 

No product offered for sale is intended to diagnose, treat, cure or prevent any disease. You should always seek advice from your professional healthcare provider before taking any medication. Always read the details and instructions on the label, keep the tub tightly sealed and out of the reach of children.

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