Category Archives: Serotonin

L-Tryptophan: The Blood Brain Connection

L-tryptophan is an essential amino acid. This means that the body cannot synthesis the amino acid, and so a dietary source must be provided for life to proceed. L-tryptophan has a number of interesting functions, one of which is its … Continue reading

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How To Make An Infant Sleep for Longer

It is well established that diet can have a pronounced effect on sleep. Both caffeine and alcohol can for example disrupt sleep. Also, it is known that the macronutrient (fat, protein and carbohydrate) content of the diet can affect sleep. … Continue reading

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The Absorption and Brain Effects of L-Theanine

L-theanine (𝛄-ethylamino-L-glutamic acid) is an amino acid found almost exclusively in the leaves of the tea plant (Camelia sinensis). L-theanine is thought to possess physiological activity in humans, and in particular may be able to affect the relaxation state of … Continue reading

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Are Low L-Tryptophan Levels a Cause of Aggression?

L-tryptophan is an essential amino acid required for normal human metabolic regulation. There is current interest in L-tryptophan because it has been shown that low levels of plasma tryptophan may be involved in the development of depression. This relates to … Continue reading

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Insomnia and L-Tryptophan Depletion

L-tryptophan is an an essential amino acid required for the production of serotonin in the neurones of the brain. In this role, tryptophan crosses the blood brain barrier and is converted to 5-hydroxytryptophan by the enzyme tryptophan hydroxylase, also the … Continue reading

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Abnormal Tryptophan Metabolism Associated With Mental Disorder

Tryptophan is an essential amino acid that fulfils two main roles in human nutrition. Firstly, tryptophan can be converted to niacin, a member of the B vitamin family of vitamins and dietary tryptophan is therefore an important source of niacin … Continue reading

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Foods to Boost Serotonin?

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Eggs: Perfect For Breakfast

Eggs are considered detrimental to the health by many because of their high content of cholesterol and saturated fat. However, the role of the egg in human nutrition has been distorted considerably. This is particularly true when considering the types … Continue reading

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The Tryptophan Paradox

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Serotonin Deficiency?

Serotonin is an important neurotransmitter in the central nervous systems on mammals. In man, research has uncovered many functions for serotonin. Originally discovered in both Italy and American, the name serotonin derives from the word ‘sero’ for blood and ‘tonin’ … Continue reading

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