What is Zinc + Vitamin C? Zinc is not easily absorbed in the body unless first attached to another substance. For this reason, we have “chelated” our zinc to citric acid to form zinc citrate. Why is ours better? We have consciously chosen a non-GMO source for our zinc citrate and have taken care to ensure that there is a neutral taste without a chalky, bitter or astringent taste. Our experts recommended Zinc Citrate as it is the form that is most readily absorbed by the body. A range you can trust This product has undergone rigorous testing by LGC’s world-class sports anti-doping laboratory, Sport and Specialised Analytical Services, for a wide range of substances banned by the World Anti-Doping Agency (WADA) to provide the highest levels of assurance possible for athletes. Made in the UK.