A recent study suggests that patients have notice bleeding of the gingiva may have a vitamin C deficiency. Data was analyzed from 15 clinical trials in six countries. There were 1140 predominantly healthy participants, as well as data from 8210 Americans who were surveyed by the U.S. Centers for Disease Control and Prevention’s Nutrition Examination Survey. The research found that bleeding on gentle probing or gingival bleeding tendency, as well as bleeding in the eye or retinal hemorrhaging, was linked to low vitamin C levels. The research showed that bleeding issues were reversed when people with low vitamin C levels increased their intake of vitamin C. The research goes on to suggest that the current daily intake recommendations of vitamin C may actually be too low.