Vitamin A Research Paper

Vitamin A Vitamin A plays a critical role in assuring normal vision and immune function, as well as gene expression and growth (Lukaski, 2004). Vitamin A takes its active form as retinol, which we typically get from foods from animals, such as eggs, liver, dairy products, and fish oil (Benardot, 2006). Beta carotene has been established as a precursor for vitamin A, so consuming foods rich in this carotenoid is another way to obtain vitamin A in the diet (Benardot, 2006). This discussion post concerns itself with the positive and negative effects on the body, particularly how they relate to athletes. As previously stated, vitamin A has an impact on proper vision, immune function, gene expression, and growth (Lukaski, 2004). This then, …show more content…
There is a limited amount of research on vitamin A and its impact on athletic performance. Wald, Brouha, and Johnson (1942 as cited in Lukaski, 2004) found that running performance did not change in a diet lacking vitamin A or after supplementation. There is no evidence to support that athletes require increased vitamin A intake or that deficiciencies exist as a result of high levels of physical activity (Lukaski, 2004). Benardot (2006) mentioned that wrestlers, gymnasts, and dancers all had average vitamin A intakes significantly lower than recommended levels, but that may be due to total energy restriction (Lukaski, …show more content…
In this same study, endurance performance was unaffected, but strength performance was significantly better in the magnesium-supplemented group (Kass, Skinner, and Poeira, 2013). This may mean that strength athletes would benefit, but more studies would have to be examined to be sure. Such findings do coincide with Brilla and Haley (1992 as cited in Lukaski, 2006), with strength increases of upwards of 20% in a young, athletic male