Understand the role
Learn the nutrient’s core physiological roles and reference needs.
Explore essential minerals involved in bone, muscle, nerve and many other body functions.
Each guide separates roles, daily needs, deficiency context, normal food sources, safety and scientific references.
Magnesium is an essential mineral and a cofactor in hundreds of enzyme systems. It is involved in energy production, protein synthesis, muscle and ne…
Read guide →Iron is an essential mineral used in hemoglobin and myoglobin and is therefore central to oxygen transport and use. Iron status should be assessed ra…
Read guide →Zinc is an essential mineral required for hundreds of enzymes and involved in immune function, protein and DNA synthesis, wound healing, cell divisio…
Read guide →Calcium is the body's most abundant mineral. Most is stored in bones and teeth, while a smaller circulating pool supports muscle function, nerve tran…
Read guide →Selenium is an essential trace mineral incorporated into selenoproteins that participate in thyroid hormone metabolism, DNA synthesis, reproduction a…
Read guide →Learn the nutrient’s core physiological roles and reference needs.
See which normal foods naturally provide the nutrient.
Review the public-health and scientific sources behind the information.