Abbreviation: AFO. Any of a class of external orthopedic appliances, braces, or splints devised to control, limit, or assist foot and ankle motion and provide leg support. Typically, orthotics are made of lightweight materials such as thermoplastics. See: illustration.
Some minerals such as calcium are needed in large quantities, while others such as zinc are only needed in trace amounts. Zinc is an essential mineral that is important for keeping your immune system strong and helps your body fight infections, heal wounds and repair cells.alcium is the most abundant mineral in your body and is found in your bones and blood. Along with the minerals phosphorus and magnesium, calcium gives your bones strength and density.
A little bit of zinc does your body plenty of good. These sources of the crucial mineral will help keep your immune system (and much more) in tip-top shape. Zinc-rich foods. Zinc plays a big role in your body, from wound healing to your perceptions of taste and smell to the synthesis of protein and DNA. The mineral can even affect your libido: Zinc aids the production of testosterone, a sex hormone. But the nutrient is most famous for its immune-boosting perks.