Chromium supplementation in general is subject to a certain amount of controversy as it is by no means clear that chromium is an essential element in human biology. Nevertheless, chromium is an ingredient in total parenteral nutrition, along with other trace minerals. It is also in nutritional products for preterm infants. Many chromium-containing products, including chromium chloride, chromium citrate, chromium(III) picolinate, chromium(III) polynicotinate are sold as non-prescription dietary supplements.
