Vitamin D remains a recurring topic in sport because low vitamin D status is common in athletic populations, particularly during winter at higher latitudes, and because vitamin D has well-established roles in calcium–phosphate homeostasis and skeletal health. Interest has expanded beyond bone, driven by mechanistic evidence that vitamin D receptors are expressed in multiple tissues (including skeletal muscle and immune cells) and by observational reports linking low vitamin D

Iron deficiency is a prevalent issue among athletes, which can significantly affect training consistency and performance if left...

In this series of blog posts we’ve discussed what sodium is , what it does in the body , how it’s lost in sweat , and how to quantify those losses . In this post, we’ll discuss how to decide if sodium needs replacing during exercise, and whether a targeted approach is necessary or not. Why do we need to replace sodium? As discussed in a previous post, sodium consumed during exercise may have benefits in terms of: improving the taste of drinks maintaining blood sodium concentr

In previous blogs we’ve discussed what sodium is and how it might be helpful during exercise . We’ve also discussed that the amount of sodium lost in sweat varies significantly from person to person. In this article, we’ll take a look at how to determine your sweat sodium losses, and key considerations if you choose to do the testing. What is a sweat sodium test? A sweat sodium test is basically a way of collecting a sample of sweat and then analysing it to determine the so