Many Americans don’t get enough vitamin B12, vitamin D, calcium, and potassium. Natural mineral supplements are an ideal means of filling in nutritional gaps that are in your diet. Taking a natural mineral supplement with these nutrients can help prevent deficiencies that play a role in the onset of varying chronic conditions. There are numerous studies to back the effects of supplementing lacking nutrients. For example, postmenopausal women can take vitamin D and calcium to increase their bone density and consequently, reduce fractures.