23 Oct 2019 --- New research quells the fear that oral sprays are a less effective delivery format for vitamin D than tablets. Following a partnership with BetterYou, a UK-based company behind the nation’s first vitamin D oral spray, scientists from the University of Sheffield found that the oral spray was as efficacious as a capsule. It also supported the same rate of improvement in vitamin D levels among the trial volunteers. This means that consumers can safely choose between delivery formats, without risking developing health complications from vitamin D deficiencies.