Selenium has been shown to increase longevity through several mechanisms. It is a key component of antioxidant enzymes that protect cells from damage by neutralizing harmful free radicals. Selenium also supports a healthy immune system, which helps to fight off infections and diseases that can shorten lifespan. Additionally, selenium plays a role in maintaining healthy thyroid function, which helps regulate metabolism and maintain energy levels. By providing these benefits, selenium helps to promote overall health and potentially increase lifespan.
It is a trace element that plays a critical role in the body as an essential component of several enzymes, including the antioxidant enzyme glutathione peroxidase. This enzyme helps protect cells from damage by neutralizing harmful free radicals. Antioxidants are important because they help prevent oxidative stress, which is a type of cellular damage that can contribute to aging and the development of chronic diseases.
Studies have shown that natural selenium supplementation can increase antioxidant activity and reduce oxidative stress in humans. For example, a study published in the journal “Biological Trace Element Research” found that selenium supplementation improved antioxidant status and reduced oxidative stress in older adults. Another study published in the “Journal of Trace Elements in Medicine and Biology” found that selenium supplementation especially in ionic form improved antioxidant status and reduced oxidative stress in healthy adults.
The thyroid, a gland located in the neck, produces hormones that regulate metabolism, energy, and other bodily functions.
Studies have shown that selenium is essential for the proper functioning of the thyroid. For instance, a study in the “Journal of Trace Elements in Medicine and Biology” found that supplementing with selenium improved thyroid function in those with subpar selenium levels. Another study in the “Journal of Clinical Endocrinology & Metabolism” discovered that natural selenium supplementation raised thyroid hormone levels in individuals with low selenium levels.
It’s noteworthy that low selenium levels increase the risk of thyroid diseases, such as autoimmune thyroiditis and hypothyroidism. The “European Journal of Endocrinology” published a study that found a correlation between low selenium levels and increased risk of autoimmune thyroiditis in women. Another study in the “Journal of Clinical Endocrinology & Metabolism” found that low selenium levels were linked to a higher risk of hypothyroidism in the elderly.
A study published in the “International Journal of Medical Sciences” found that natural selenium supplementation significantly increased cytokine production, an important aspect of the immune response.
Additionally, low selenium levels have been linked to a decreased immune response and increased risk of infections. A study published in the “British Journal of Nutrition” found that low selenium levels were associated with increased susceptibility to infections. Another study published in the “Journal of Trace Elements in Medicine and Biology” found that low selenium levels were associated with a decreased immune response to viral infections.
Studies have suggested that adequate selenium intake may reduce the risk of certain types of cancer. For example, a study published in the “Journal of the National Cancer Institute” found that individuals with higher selenium levels had a lower risk of prostate cancer. Another study published in the “American Journal of Clinical Nutrition” found that higher selenium intake was associated with a reduced risk of colon cancer.
However, it’s important to note that the results of these studies are not conclusive and more research is needed to fully understand the relationship between selenium and cancer. Some studies have even suggested that high selenium levels may increase the risk of certain types of cancer. For example, a study published in the “British Journal of Cancer” found that high selenium levels especially the synthetic type were associated with an increased risk of skin cancer.
Research has indicated that adequate selenium intake may lower the risk of heart disease due to its antioxidant properties. For instance, a study published in the “American Journal of Clinical Nutrition” found a lower risk of cardiovascular disease in individuals with higher selenium levels. Another study in the “British Journal of Nutrition” reported improved markers of cardiovascular health, such as blood pressure and cholesterol levels, from natural selenium supplementation.
The brain is vulnerable to oxidative stress, which has been linked to cognitive decline, and selenium has antioxidant properties that protect cells from oxidative damage.
Studies have indicated that adequate selenium intake may improve cognitive function. For instance, a study published in the “Journal of Nutrition, Health & Aging” found that higher selenium levels were associated with better cognitive performance in older adults. Another study in the “Journal of Alzheimer’s Disease” reported improved memory and cognitive function in individuals with mild cognitive impairment after taking natural selenium supplements.
While selenium supplementation is often promoted for its potential health benefits, it is important to note that excessive selenium intake can be harmful. The human body only requires a small amount of selenium, and taking too much can lead to selenium toxicity.
Synthetic selenium supplements, such as selenium yeast and selenomethionine, are commonly available but may carry higher risks of toxicity compared to food-based or natural ionic sources of selenium. The risk of toxicity depends on the form and dose of selenium supplementation.
Symptoms of selenium toxicity can include nausea, diarrhea, hair loss, white blotchy nails, and nerve damage. In severe cases, selenium toxicity can lead to life-threatening conditions such as cardiovascular and respiratory failure.
The following are some of the best food sources of selenium:
Yes, selenium can be delivered transdermally, meaning through the skin. Transdermal selenium products are available in the form of creams, gels, and patches. These products claim to deliver selenium directly into the bloodstream through the skin for maximum absorption and effectiveness.
However, the efficacy and safety of transdermal selenium products are not well established and more research is needed to fully understand their effects. Additionally, high doses of selenium can be toxic, so it is important to consult a healthcare professional before starting any transdermal selenium product to ensure that it is appropriate and safe for use. It is always advisable to follow recommended dosages and to avoid over-supplementation.
The Recommended Dietary Allowance (RDA) for selenium is as follows:
It is important to note that these recommendations are based on average requirements and may not be applicable to everyone. Individual needs may vary based on factors such as age, sex, weight, and overall health. Consultation with a healthcare professional is recommended to determine the appropriate amount of selenium for an individual.
Natural ionic StamiLyte is a dietary supplement that contains 2.5 micrograms of selenium per serving. This amount provides a convenient and safe way to top up selenium levels in the body without the fear of toxicity. Selenium is an essential trace element that plays a critical role in various bodily functions, including the immune system, thyroid function, and antioxidant defense.
By providing a natural source of selenium, StamiLyte helps support optimal health and well-being. It is important to note that while selenium is essential for health, high doses can be toxic. That is why StamiLyte provides a balanced and safe amount of selenium per serving, ensuring that you can top up your selenium levels without the risk of adverse effects.