SunVit-D3 & Athletic Performance

Vitamin D and Sports Performance


As the properties of vitamin D and calcium are becoming better understood, we’ve noticed an increased demand for our products from athletes and sports teams. The many benefits of vitamin D3 are slowly becoming more well known, and its involvement in most of the body’s vital processes is now being recognised.

Long hours of training can be very demanding on your muscles, bones and overall energy levels – making it particularly important for those doing high impact, high endurance activities to ensure they monitor their levels of vitamin D and calcium. As we get some of our vitamin D from sunlight, those who have to spend a lot of time training indoors may be at higher risk of not getting enough. Blood test kits are an efficient way to determine your vitamin D levels.

Watch our brand new video with Dr. Nicky Keay, Sports and Dance Endocrinologist, as she walks us through why Vitamin D supplementation is important for everyday life and for those who heavily practice dancing, cycling, cardio and strength training.


What does Vitamin D do for Athletes?

Vitamin D contributes to the normal absorption and utilisation of calcium, and helps to ensure normal calcium levels in the blood. Almost 99% of your vitamin D supply is used for regulating calcium in the body. This essential mineral also contributes to normal metabolism, which in turn impacts your energy levels – you can’t excel in your chosen sport if you’re feeling lethargic.

The remaining 1% of your vitamin D intake is utilised for strengthening the immune system and maintaining muscle strength. Vitamin D contributes to the maintenance of normal muscle function, muscle contraction and repair. If you can improve your muscle recovery after you train, this in turn could help your performance as an athlete.

Certified by Informed Sport

With so many supplements to choose from, how do you know which are the safest to take?

Look for products approved by quality assurance programmes such as Informed Choice and Informed Sports. Informed-Choice and Informed-Sport are QA programs for sports nutrition products, suppliers to the sports nutrition industry, and supplement manufacturing facilities. It is a monitoring program that certifies that a supplement product and/or raw material has been tested for banned substances by LGC’s world-class sports anti-doping laboratory.

Informed Sport LogoInformed Choice logo


Products bearing the Informed Choice or Informed Sports logos will have undergone an extensive procedure carried out by the anti-doping laboratory LGC Sport and Specialised analytical service to ensure that it is free from a wide range of substances banned by the World Anti-Doping Agency (WADA).

Our SunVit-D3 1,000 IU  & 20,000 IU tablets are certified by Informed-Sport and Informed-Choice and have undergone/will undergo these procedures every year.

We offer 30% Discounts on our Vitamin D for Athletes

If you are a part of an athletic team or sports club, we are pleased to offer a 30% discount off some of SunVit’s popular Vitamin D3 supplements when you order 30 packs or more. Our Vitamin D3 supplements are already used by some of the top football clubs and sporting organisations throughout the UK and our 1,000IU and 20,000IU tablets are certified by Informed-Sport and Informed-Choice.


Sports Team Discount

Use the coupon codes below to take advantage of this the 30% discount.

*Offer applies to SunVit-D3 1,000 IU (25µg) and Sunvit-D3 20,000 IU (500µg) only and cannot be used in conjunction with any other offer.

  • SunVit-D3 1,000 IU (25µg) – ‘sportvits1’ 
  • SunVit-D3 20,000 IU (500µg) – ‘sportvits2’

For further information on how SunVit-D3 can support sports clubs and teams, email us at

Order sports supplements now: 

SunVit-D3 & Boost Oxygen

It gives us great pleasure to be able to introduce Boost Oxygen UK and their flavoured oxygen range which includes their peppermint, Menthol – Eucalyptus and Natural flavours.

Boost Oxygen is portable, lightweight and 95% pure oxygen. It is all natural and available in either pure form or with essential oil aromas such as Menthol-Eucalyptus and Peppermint. Founded in 2007, Boost Oxygen is currently the bestselling and most trusted oxygen canister brand in the world.

Order Boost oxygen cans now: 

Boost Oxygen - Mentol Eucalyptus Boost Oxygen - Natural Flavour Boost Oxygen - Peppermint Flavour

Research, Partnerships & Case Studies


Professor Matthew Wyon, PhD, CSCS from Research Centre of Sports Exercise and Performance, Institute of Sport at the University of Wolverhampton states:

“Vitamin D supplementation is not only used for treating patients lacking vitamin D but also proven to be vital for elite athletes and dancers for improvements in muscle performance and subsequent reduction injury”.

SunVit-D3 & Active Edge Race Team

For many of you that do not know or haven’t heard of Active Edge or road racing in general here is some insight into the sport. Road racing often involves 60-80 riders competing over 60-150 miles over different types of terrain and places. There is an element of team work within the sport which allows riders to work together and help each other achieve individual goals.

Road racing requires a lot of dedication in terms of time, training and miles on their bikes during all seasonal weather conditions. All riders are required to have a well-balanced, healthy varied diet allowing for maximum performance and recovery. Health Supplements including Vitamin D3 can play an important role in this recovery period.

Active Edge Race Team at BMW Launch


Alongside supplying the team with Vitamin D3 Informed Sport accredited supplementation for the 2019 season, we will be providing regular feedback from the riders through our Facebook, Twitter and Instagram accounts about their Vitamin D3 journey. We have also been able to supply the Elite team with high performance rider helmets and leCol race kits with our logo printed on. And, you can even spot our logo on their brand-new BMW 3 series team car.


Active Edge Race Team BMW z4mSunVit-D3 and Active Edge Race Team HelmetActive Edge Race Team BMW z4m logos

“With racing and training within the UK it is super crucial to maintain our Vitamin D levels to allow for maximum performance, recovery and health. There are also a few health and bone risks due to the nature of cycling – these can be caused by collisions, high stress levels and intense training. These factors mean our bone health is at a constant risk, because of this we will be making sure we use the SunVit-D3 Informed – Sports Accredited supplementation supplied to us throughout our entire season. These supplements will allow us to have maximum recovery, high energy levels, high performance and the reduced risk of any bone or health issues.”

Sam Woodfield
Active Edge


SunVit-D3 Sponsors Study Into Identifying Male Cyclists At Risk Of RED-S

RED-S (Relative Energy Deficiency in Sport) is an often unrecognised disorder that can result in disordered eating, low energy, dehydration and low bone mineral density. This can affect all athletes but the risk is particularly high in competitive athletes due to their rigorous training schedules.


cyclist in sunset


SunVit-D3 has recently sponsored a study into how to identify male cyclists at risk or RED-S and the effects Vitamin D can have for the men with the condition. SunVit-D3 is keen on promoting the benefits of Vitamin D in Sports performance as long hours of training can be very demanding on an athlete’s body, particularly on muscles, bones and overall energy levels. These studies can help provide information to benefit sports performance and help athletes maintain their health during the toughest tests of endurance.


In those cyclists with adequate EA assessed from SEAQ-I, vitamin D concentration was the factor indicative of lumbar spine BMD. Vitamin D is emerging as an important consideration for athletes, for bone health, muscle strength and immune function.” (Oct 2018, Nicky Keay Fitness).
Nicky Keay Fitness
October 2018


To learn more about the condition and read the full study: How to Identify Male Cyclists at Risk of RED-S

Check out Dr Nicky Keay’s website for more insightful research and studies into sports performance.


SunVit-D3 & One Dance UK

Sunvit-D3 supports One Dance UK’s Healthier Dancer Programme which works to improve the physical and psychological health and wellbeing of dancers.

SunVit-D3 supported research by three of the founding partners of the National Institute of Dance Medicine and Science. The research was carried out by the Royal National Orthopaedic Hospital (RNOH), University of Wolverhampton and the Jerwood Centre at Birmingham Royal Ballet. In these study dancers who were given 2,000 IU of SunVit-D3® per day demonstrated increases in muscle strength and vertical jump performance. They also had less injuries compared to those who did not take supplements. Read more on the study here.


“Vitamin D is important for bone development and has a wide range of functions. In a deficient state, dancers are at increased risk of bone injuries and this latest research indicates an increased risk of muscle injury, which can be detrimental to their health and their careers”

Dr Roger Wolman
Consultant in Rheumatology and Sport and Exercise Medicine

Vitamin D for sports

“The Royal Ballet Company has a long association with SunVit-D3 who are our preferred supplier of Vitamin D supplementation for the dancers of The Royal BalletWe undertake autumn and spring blood tests of our dancers to ascertain their Vitamin D levels, then provide SunVit-D3 supplements to take through the winter months. We have seen a significant improvement in Vitamin D levels across the Company over the years and supplementation is now a routine part of the preparation for a dancer to remain fit, strong, and healthy throughout the season.”

Greg Retter
Clinical Director – Ballet Healthcare
The Royal Ballet


Order sports supplements now: 

SunVit Boost Oxygen Peppermint