21 Oct 2015 --- DSM is celebrating World Osteoporosis Day today 20 October 2015, by highlighting the importance of vitamin D in improving bone mineral density through calcium absorption and deposition. Marking the start of a year-long campaign, DSM is an official nutrition supporter as part of its longstanding partnership with the International Osteoporosis Foundation (IOF). This has included support of IOF’s research on vitamin D status in both the developing and industrialized world, which concluded that more than one third of the entire global population is showing insufficient levels of vitamin D.