Vitamin D and Athletic Performance
Diana L. Davis, RD 

Vitamin D is referred to as the “Sunshine Vitamin” because it is made in your body with exposure to sunlight.

Evidence suggests that Vitamin D plays an important role in an athlete's health, training and performance.

Runners Essentials Vitamins contain 20 mcg Vitamin D as Cholecalciferol, which is 100% of the recommended daily value (%DV).

Deficiency in Vitamin D is common worldwide, affecting 36-57% of American population. The risk of deficiency extends to athletes, including runners, especially over the winter months when less UVB radiation reaches Earth.

Even in Summer months, and in parts of the planet nearer the equator, the use of sunscreen and clothing to avoid the skin damaging effects of the sun lead many athletes to having insufficient amounts of Vitamin D.

People with darker colored skin, who have more melanin blocking absorption, do not get as much Vitamin D from the sun.

Athletes who are low in Vitamin D are at higher risk for injury, especially stress fractures.

Low levels of Vitamin D in athletes can affect muscle strength and performance.
Vitamin D reduces inflammation and can reduce the muscle damage caused by intense training.

The diet is not a good source of Vitamin unless you consume Vitamin D fortified foods such as milk, cereal, yogurt or eat naturally rich sources such as fatty fish (salmon, sardines, tuna), beef liver, cheese, and egg yolks daily.

Runners Essentials Vitamin D is better absorbed and is a safe amount to take every day. Our goal is to help endurance athletes maintain sufficient intake of this vital nutrient to protect health and promote performance.

Not sure about your Vitamin D status? Ask your healthcare provider to check it – both in summer and in winter.

Written by Runners Essentials by Without Limits®

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