Witham MD, Price RJG, Band MM, et al. - Researchers examined how vitamin K2 supplementation affects postural sway, falls, healthcare costs, and indices of physical function in older people at risk of falls. They conducted a parallel-group double-blind randomized placebo-controlled trial at 14 primary care practices in Scotland, UK. They administered once/day placebo, 200 μg or 400 μg of oral vitamin K2 for 1-year to 95 community-dwelling participants aged 65 and older with at least two falls, or one injurious fall, in the previous year. Outcomes revealed no improvement in postural sway or physical function in older people at risk of falls in correlation to receiving oral vitamin K2 supplementation.