Recommended Daily Intake
Calcium: Adult men and women should aim for 1,000-1,300 mg/day depending on age and life stage, according to the National Institutes of Health (NIH).
Magnesium: The recommended daily intake varies by age and sex, but it generally ranges between 320 mg and 420 mg for adults.
Before you start supplementing, evaluate your current diet to determine how much of these minerals you're already getting.
Dairy products, fortified foods, leafy greens, and certain types of fish are good sources of calcium. Nuts, legumes, and whole grains are rich in magnesium.