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Michael McIsaac, MS, MS, CSCS

Environmental Pollutants, Sweating, and Detoxification

Sears, Kerr, and Bray (2012) indicated that several elements exist in the environment that provide no known benefit, physiologically. Such elements include arsenic (As), cadmium (Cd), lead (Pb), and mercury (Hg) (Sears et al., 2012). However, said elements have the capacity to bioaccumulate in the body producing aberrations in multiple regions to include the cardiovascular, […]

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Boron: Food Sources and Function

Boron (B) is a substance once used as a preservative in foods (i.e., 50 years ago) thought to be a beneficial element, but is currently not considered essential to the human diet (Gropper et al., 2018). Although B is not essential, said micronutrient does exert influence over selected physiological processes to include bone development, mediation […]

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Iodide Function and Sources

Iodide (I) is a non-metal responsible for many roles to include thyroid hormone synthesis; a substance influencing several physiological processes to include stimulation of oxygen consumption, body heat production, nervous system development, and maintenance of basal metabolism (Gropper, Smith, & Carr, 2018; Weng, Liu, Ye, Pan, & Xia, 2014). Thus, adequate consumption I is essential […]

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Selenium: Function, Deficiencies, and Best Sources

Selenium (Se) is a micronutrient that is a component of larger proteins (i.e., selenoproteins) involved in such processes as redox reactions, antioxidant activity, reproduction, immune function, and thyroid metabolism (Thomason, Chisholm, McLachlan, & Campbell, 2008). Deficiencies in Se have been associated with viral infections, inflammatory disorders, male infertility, altered immune function, cardiovascular disease, cancer, and […]

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Zinc and Copper: Optimizing Mitochondrial Function

Mitochondria are organelles found within cells responsible for energy (ATP) production. Such is achieved via conversion of food (carbohydrates, fats, proteins) through oxidation and enzymatic reactions (Reisner & Reisner, 2017). As such, it is paramount said enzymes are present and in adequate concentrations, which is achieved by appropriate levels of key precursors; zinc (Zn) and […]

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Zinc: Function and Deficiencies

Zinc (Zn) is a micronutrient and essential cofactor/metal in many enzymes to include alkaline phosphatase, carbonic dehydratase, and polymerases and is obligatory for cell division and DNA synthesis (Crook, 2011). Deficiencies in Zn can cause several maladies such as increased risk of infections, infertility, impaired brain development, dermatitis, alopecia, low testosterone, and impaired smell/taste (Crook, […]

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Potassium: Function and Deficiencies

Potassium (K) is a micronutrient, which is a constituent of a larger family of electrolytes to include phosphorus (P), chloride (Cl), calcium (Ca), and sodium (Na) (Gropper, Smith, & Carr, 2018). When in balanced concentrations, electrolytes facilitate nerve conduction, movement of nutrients within a cell, pH balance, and fluid balance (Fluid and Electrolyte Balance, 2018). […]

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Processed Foods, Cardiovascular Disease, and Insulin Resistance

Excessive consumption of processed foods is a dominant trend in North America in which 70% of calories are derived from refined carbohydrates to include alcohol, vegetable oils, and sugar (Ilich, Kelly, Kim, & Spicer, 2014). Such refined sources (i.e., sugar sweetened beverages) have become linked to pathological conditions like cardiovascular disease (CVD) and insulin resistance/type 2 […]

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Electrolytes: Managing Hypertension

Hypertension, defined as resting blood pressure of ≥140/90,impacts over 29% of the adult American population and is a leading cause of renal disease, heart attack, and stroke (Gropper, Smith, and Carr, 2018). Sodium (Na) was one of the first micronutrients mechanistically linked with hypertension, and has since become a commonly understood factor in risk and […]

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