Category Archives: Testosterone

Tongkat Ali for Athletic Performance

Eurycoma longifolia is a medicinal herbal plant that is commonly called tongkat ali. It grows in tropical regions of Southern Asia. Some evidence suggests that tongkat ali is an adaptogenic herb  and in this regard it may have certain applications … Continue reading

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Protective Effects of L-Carnitine on Fertility

L-carnitine is a molecule synthesised in humans and required for energy production. L-carnitine is used by the cells to transport fatty acids across the mitochondrial membrane in order to allow oxidation and energy release. Around 25 % of the L-carnitine … Continue reading

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Eurycoma longifolia (tongkat ali) for Stress?

Eurycoma longifolia, commonly known as tongkat ali, is a plant that grows natively in parts of Malaysia, Vietnam, Sumatra, Thailand and Java. Traditional medicine from these regions uses Eurycoma longifolia for a number of reasons, with one common use being … Continue reading

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Zinc Depletion and Testosterone

Evidence suggests that zinc plays an important role in human reproduction. In particular, zinc may be essential for the male reproductive system. A number of studies have investigated the effects of zinc supplements on male reproductive function and these results … Continue reading

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Testosterone Release and Age

Age is a significant determining factor in testosterone release. Before puberty the concentrations of testosterone are low as would be expected. After this time there is a small increase in levels in females, but a large increase in males. This … Continue reading

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Testosterone Release, Resistance Training and The Number of Sets

Testosterone is released following exercise, but the amount released depends largely on the type of exercise employed. Generally resistance training results in higher amounts of testosterone produced compared to other forms of exercise. The number of sets undertaken within that … Continue reading

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Testosterone Release and Exercise Intensity

Testosterone can be increased through resistance training as well as other exercise. However, the exact reaction of the metabolism of the individual depends on the type of exercise performed. Exercise intensity is defined as the amount of force exerted by … Continue reading

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D-Aspartic Acid: Dosage Considerations

Studies consistently show that male animals respond to D-aspartic acid supplementation with increased synthesis of testosterone. However, the human results from studies have been more inconsistent, and this likely relates to either methodological problems with controlling human diets and lifestyles, … Continue reading

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Testosterone: Production and Release

Maintaining optimal testosterone (17b-hydroxy-4-androstene-3-one) levels is not only important as a means of maintaining adequate muscle mass, but is also related to health and well being. This is true for both men and women, although the levels of testosterone in … Continue reading

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Vitamin K and Testosterone

Hormonal interactions are difficult to quantify as there are so many variables at play. This makes it very difficult to determine the effects of nutrients on hormones, and giving advice on which nutrients may affect testosterone levels is therefore replete … Continue reading

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