Vitamin C C deficiency. Beyond that, a role for vitamin C as prevention or treatment for various diseases is disputed, with reviews reporting conflicting results. A 2012 Cochrane review reported no effect of vitamin C supplementation on overall mortality. It is on the World Health Organization's List of Essential Medicines as one of the most effective and safe medicines needed in a health system. The disease scurvy is caused by vitamin C deficiency and can be prevented and treated with vitamin C-containing foods or dietary supplements. It takes at least a month of little to no vitamin C before symptoms occur. Early
History of the Royal Navy and England's Royal Navy were organised as one force, though not technically merged, as a consequence of the Union of the Crowns when James VI of Scotland became King of England also, as James I. Though the Lord of the Isles had a large fleet of galleys in the 13th and 14th centuries, there appears little or no trace of a Scots navy during the Wars of Scottish Independence. With Scottish independence established, Robert the Bruce turned his attention to the upbuilding of Scots shipping and of a Scots navy. In his later days he visited the Western Isles, which