If your current diet is heavy in sugar, refined flour, coffee, and alcohol, you may have reduced stores of B vitamins in your body. Some research points to B vitamins in complex carbohydrates as being important in ending pain, particularly nocioceptive pain, which comes when you have a sprain, fracture, bump, bruise, inflammation from infection or arthritic disorder, and myofascial pain (abnormal muscle stresses).
Other studies explored the possibility that the effects of vitamin B1 (thiamin), B6 (pyridoxine), and B12 (cyanocobalamin) might reduce inflammation. Findings presented at the American Physiological Society Conference in San Diego, California, concluded that some B vitamins may be clinically effective in treating painful conditions such as lumbago, sciatica, and other types of pain by acting as an analgesic (pain reliever).
Findings from the National Institutes of Health link vitamin B3 (niacin or niacinamide) with improved range of motion and reduced pain and inflammation. It is thought that vitamin B3 may be helpful in preventing osteoarthritis by enhancing glucocorticoid secretion (natural steroid), which would decrease inflammation in the body.