Market Highlights According to MRFR analysis, the global vitamin D testing market size is expected to register a CAGR of ~6.1% during the forecast period of 2022 to 2030 and is expected to reach USD ~963.6million by 2030. Vitamin D, also referred to as calciferol, is a prohormone or precursor of a hormone. It is a fat-soluble vitamin that is naturally present in a few foods. Vitamin D...