Certified Emergency Nurse (CEN) Practice Test

What dietary sources are known to be rich in magnesium?

1. Dairy products

2. Dark leafy greens

3. Pasta

4. Red meat

The correct answer is: Dark leafy greens

Dark leafy greens are known to be particularly rich sources of magnesium due to their high chlorophyll content. Magnesium is an essential mineral involved in numerous physiological functions, including muscle and nerve function, blood glucose control, and blood pressure regulation. Foods such as spinach, kale, and Swiss chard are examples of dark leafy greens that provide significant amounts of magnesium. Dairy products can provide magnesium, but they are not considered as rich in this mineral compared to dark leafy greens. Pasta, while a common dietary staple, usually offers minimal magnesium levels, especially if made from refined flour rather than whole grain. Red meat contributes some magnesium but does not match the quantities found in dark leafy greens. Thus, when considering dietary sources that are particularly high in magnesium, dark leafy greens stand out as the superior choice.