8. Swollen, painful joints
As previously stated, good collagen formation is vital in having healthy articulations, so a lack of vitamin C has major effects on your joints. In fact, it seems that quite a lot of Americans are dealing with joint pain caused by vitamin C deficiency.
Some occurrences are so bad that make walking impossible. Unfortunately, in some cases, it goes as far as bleeding into the joints. If you suffer from joint pain, keep in mind that lacking vitamin C can also lead to bleeding within the joints.
Fortunately, taking vitamin C supplements will treat those symptoms within about two weeks.