In the physio press recently I read with interest about a study that found…
“a combination od resistance exercises and vitamin D supplements may boost adults’ muscle strength more effectively than exercise alone”.
The study said that the vitamin D supplement on its own didn’t appear to boost muscle strength, but for those in the study who did both exercise and took the supplement, their muscle strength improved significantly…more than those who just did the exercise.
However, the report does go on to say that more research is needed before firm conclusions can be made, but if you think it may be of benefit to you, I would suggest you talk to your GP and get their advice.
The study was published in: BMJ Open 2017 dot 10.1136/bmjopen-2016-014619