When we think about key nutrients, most people think of vitamin C for immunity or calcium for strong bones. But there’s one mineral that often flies under the radar, despite playing a vital role in over 300 biochemical reactions in the body : magnesium . Modern diets high in processed foods, combined with stress and certain medications, can lead to magnesium deficiency. Why Magnesium Is Essential Magnesium is involved in countless processes that keep the body running smoothly