21st Century Magnesium 250 mg Gluten-Free Tablets is a mineral supplement which majorly helps in healthy bone and muscle functions. Magnesium acts as a natural calcium blocker, helping your muscle cells relax after contracting. When magnesium levels are low, your muscles may contract too much and cause symptoms such as cramps or muscle spasms. Magnesium deficiency produces muscle weakness and damage. Magnesium contributes to flexibility and helps to prevent injury by loosening tight muscles. Magnesium is necessary for the metabolism of calcium, vitamin C, phosphorus, sodium, and potassium. It also has a significant effect in supporting cardiovascular health and nervous system function. It has anti-Inflammatory benefits. It is needed for muscles and nerves to work properly, to keep blood sugar and blood pressure at the right level, and to make protein, bone, and DNA. Low levels of magnesium over time can lead to low calcium and potassium levels. Magnesium is also important for healthy bones. People with higher intakes of magnesium have a higher bone mineral density, which is important in reducing the risk of bone fractures and osteoporosis. Overall, magnesium assures the strength and firmness of bones, takes better care of your muscles and a lot more benefits to bodily functions.