Category Archives: L-tyrosine

Taurine Improves Insulin Sensitivity

Posted on August 25, 2023 by Robert Barrington

Taurine supplements have been shown to have a number of health effects relating to the nervous system and cardiovascular system. This may relate to the ability of taurine to regulate cell osmolarity and thereby affect cell hydration. One physiological function … Continue reading →

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L-Tyrosine Supplements

Posted on May 26, 2023 by Robert Barrington

L-tyrosine is an amino acid that is used by the cells to synthesise adrenaline and noradrenaline using the tyrosine hydroxylase enzyme pathway. This pathway maintains adequate stores of adrenaline and noradrenaline, particularly in nervous tissue. Stress depletes the body of … Continue reading →

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Nutrients for the Treatment of Thyroid Health

Posted on April 20, 2022 by Robert Barrington

The thyroid gland is pivotal in the metabolism of the organism. Hypothyroidism, or low activity of the thyroid, produces a sluggish metabolic rate which is characterised by the inability to correctly use energy to produce movement or heat. Treating hypothyroidism … Continue reading →

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Do High Protein Diets Decrease Anxiety?

Posted on November 30, 2020 by Robert Barrington

High protein diets have been shown to have a number of health benefits. One of these benefits may be an improvement in mental health. For example, in one study researchers fed a group of rats with either low (8 %), … Continue reading →

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L-Tyrosine and Stress

Posted on February 1, 2017 by Robert Barrington

L-tyrosine is a non-essential amino acid, that is a precursor to the catecholamine neurotransmitters. When consumed l-tyrosine can cross the blood brain barrier, where it can be converted to adrenaline, noradrenaline and dopamine. Supplemental l-tyrosine has been shown to increase … Continue reading →

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Cayenne Pepper, Catechins and Caffeine: Fat Burners

Posted on March 21, 2016 by Robert Barrington

A number of herbs have traditionally been used for weight loss. Of these cayenne pepper and green tea are two of the most commonly used. Green tea contains a number of components that may induce weight loss including caffeine and … Continue reading →

Posted in Black Tea, Caffeine, Calcium, Catechin, Green Tea, L-tyrosine, Obesity, Tea, Weight Loss | Comments Off on Cayenne Pepper, Catechins and Caffeine: Fat Burners

Why Is Depression So Difficult To Treat?

Posted on June 21, 2015 by Robert Barrington

The aetiology of depression is complex. The reason for this may be that depression is caused by different things is different people. The traditional view of depression is that it s caused by a deficiency of serotonin in the brain. … Continue reading →

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L-Phenylalanine and DL-Phenylalanine: Differences

Posted on June 20, 2015 by Robert Barrington

L-phenylalanine is an essential amino acid required for the synthesis of proteins. In addition, L-phenylalanine is the substrate for the formation of the catecholamine neurotransmitters and hormones. The catecholamines are adrenaline, noradrenaline and dopamine, and in the brain they play … Continue reading →

Posted in Adrenergic System, Catecholamines, DL-Phenylalanine, Dopamine, L-phenylalanine, L-tyrosine, Stress | Comments Off on L-Phenylalanine and DL-Phenylalanine: Differences

The Role of Dopamine in Mood

Posted on April 25, 2015 by Robert Barrington

Dopamine is a neurotransmitter in the brain that is synthesised in a chemical pathway originating from the amino acid L-phenylalanine. The enzyme phenylalanine hydroxylase converts L-phenylalanine to L-tyrosine, and then the enzyme tyrosine hydroxylase converts L-tyrosine to L-DOPA. Finally, L-DOPA … Continue reading →

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Do Obese Individuals Have Impaired Catecholamine Metabolism?

Posted on November 6, 2014 by Robert Barrington

The catecholamines adrenaline, noradrenaline and dopamine are produced from the non-essential amino acid L-tyrosine through a series of enzymatic reactions that are controlled by a rate limiting step catalysed by tyrosine hydroxylase. Catecholamines are important neurotransmitters in the brain that … Continue reading →

Posted in Adrenergic System, Catecholamines, Iron, L-tyrosine, Thermic Effect of Food (TEF), Weight Loss | Comments Off on Do Obese Individuals Have Impaired Catecholamine Metabolism?