Vitamins

Vitamin B12 and energy: deficiency, symptoms and your blood values

B12 is needed for your red blood cells and your energy. How to spot a deficiency, how to test it, and how active B12 and...

Vitamin D deficiency in athletes: recovery, performance and testosterone

Many athletes drop to a low vitamin D level in winter. How to spot a deficiency, how to measure it and how to adjust.

Vitamins and minerals for athletes: which blood values count

Which vitamins and minerals drive your recovery and performance, and which blood values reveal them? A data-driven guide...