Prevalence of vitamin D inadequacy in athletes is prominent

Sports Med. 2015 Mar;45(3):365-78

Osteoporotic fracture rate not significantly improved by vitamin B-12 or folic acid intake

Am J Clin Nutr. 2014 Dec;100(6):1578-86.

Vitamin K2 is effective for management of osteoporosis in postmenopausal women

Osteoporos Int. 2015 Mar;26(3):1175-86.

AAOS2017: Vitamin D supplementation in hip fracture patients

AAOS 2016: Single-dose vitamin D does not reduce nonunion rate in acute long bone fracture

AAOS: Role of Vitamin D in Osteoarthritis Knee

Calcium + Vitamin D supplementation reduces the risk of total and hip fractures in adults

Osteoporos Int. 2016 Jan;27(1):367-76

No added benefit of vitamin C on functional outcomes or healing of distal radial fractures

J Bone Joint Surg Am. 2014 Sep 3;96(17):1451-9. doi: 10.2106/JBJS.M.00268.

OTA 2014: High-dose vitamin D vs. placebo in deficient patients with long bone fracture

Vitamin D supplementation for bone mineral density increase in osteogenesis imperfecta

Bone. 2016 May;86:36-42

500mg dose of Vitamin C effective in preventing complex regional pain syndrome

J Bone Joint Surg Am. 2007 Jul;89(7):1424-31

Vitamin D supplementation has no major impact on knee OA symptoms or progression

JAMA. 2013 Jan 9;309(2):155-62. doi: 10.1001/jama.2012.164487

WCO-IOF: Vitamin D supplementation appears to improve muscle function

Vitamin D supplementation following hip fracture: what is the best dosing strategy?

BMC Musculoskelet Disord. 2011 Jun 20;12:135. doi: 10.1186/1471-2474-12-135

Effects of vitamin D and whole body vibration training for institutionalized elderly women

Gait Posture. 2011 Mar;33(3):466-72

6 wk Vitamin C Supplementation Improves Pain and Function vs. Placebo After Foot and Ankle Surgery

Foot Ankle Surg. 2019 Aug;25(4):542-545.

High dose vitamin D increases risk of falls and fractures in older women

JAMA. 2010 May 12;303(18):1815-22.

Vitamin D does not improve radiological or clinical outcomes for patients with knee OA

Osteoarthritis Cartilage. 2016 Nov;24(11):1858-1866

Oral/parenteral vitamin D improves pain, mobility quality of life in elderly

Rheumatol Int. 2012 Aug;32(8):2279-83. doi: 10.1007/s00296-011-1943-6. Epub 2011 May 10.

No beneficial effects of oral vitamin D3 on cartilage volume or knee pain in knee OA

JAMA. 2016 Mar 8;315(10):1005-13