Supplements use in dancers

Dietary supplements are taken by athletes to supplement their existing nutritional intakes and address any insufficiencies or deficiencies that may affect their health or performance. While some are taken for performance and others for health, others are completely pointless, occasionally dangerous, and all cost a considerable amount of money. Individuals with low caloric intakes may need to consider supplementation in order to ensure their nutrient intake is adequate. As many dancers use calorie restriction in an attempt to control weight and body composition, they are an at-risk group for nutrient insufficiencies/deficiencies and so it is worth considering where insufficiencies may arise.

Research Update: Vitamin D status in ballet dancers

A new study carried out by Roger Wolman of the Royal National Orthopaedic Hospital in Stanmore, along with colleagues at the University of Wolverhampton, has looked at the vitamin D status of professional ballet dancers in winter vs summer months.

(c) Koji Aoki  

The 6 month cohort study contrasted high sunlight months (summer) against low sunlight months (winter). The study looked at 19 professional ballet dancers within the UK and considered their vitamin D status through serum 25-hydroxyvitamin D levels within the body, as well as recording parathyroid hormone (PTH) and blood serum bone turnover markers (CTX and PINP). The dancers all danced 6-8 hours a day, for 38 hours a week. The Company's doctors recorded injury instance over the 6 month period.

Significant differences were found in levels of serum 25-hydroxyvitamin D, PTH  and blood serum bone turnover markers between summer and winter months. Although levels of 25-hyrdoxyvitaminD were higher in summer months, only 3 of the 19 dancers achieved "sufficient" levels during the summer period, with the rest being considered either insufficient or deficient in vitamin D. All dancers' vitamin D levels were found to be insufficient or deficient in winter months.

Vitamin D and training in winter

So vitamin D is pretty much my favourite thing in the world to talk about right now. Seriously. 

Without going into a full thesis on the reasons you need it (and probably a lot more of it than you're getting) if you work inside, train inside, rehearse inside or live anywhere above 40 degrees north of the equator (that's most of Europe and about half of the USA) you're likely to have insufficient levels of it. A huge number of people, even those living in countries with long hours of sunlight have been shown to have insufficient, if not deficient levels. You're more likely to be at risk if you have a low calorie intake and low levels of body fat, so it won't come as a surprise that 70% of dancers tested have been shown to have below acceptable levels.