A magnesium blood test measures the amount of magnesium, an important mineral, in your blood. Your body needs magnesium from ...

Most healthy people get enough magnesium from food, but certain conditions—like diabetes, gastrointestinal disorders, or aging—can lead to low magnesium levels over time. Mild magnesium deficiency may ...

You've been to the doctor. You've described the fatigue, the stubborn weight that won't budge, the hair loss, the persistent inflammation. The lab work comes back "normal," and you're sent ...