You were always told to drink your milk as a kid, right? Next up is a mineral necessary for healthy bones and muscles: calcium.
It's is one of the essential minerals lost when the body enters a state of heat exhaustion, or worse, heat stroke. Calcium also happens to be the most abundant mineral in the human body [source: UMMC].
Despite its abundance, calcium needs to be replaced to ensure the health of cells, especially in people spending a lot of time in hot conditions. Cells use calcium as a means of storing potential energy, which in turn is used to power a number of things, namely the contraction of muscles [source: URMC].
To make things worse, when heat exhaustion becomes heat stroke, patients can experience a condition called rhabdomyolysis, where muscles begin to break down and damage the kidneys [source: Sprung]. This in turn causes an increased calcium deficiency called hypocalcemia, creating a downward spiral.
The good news is that calcium is readily found in sources like dairy products and green, leafy vegetables. It can also be taken in calcium carbonate supplements, the same found in many antacids.
Let's move on to No. 3 in the list, a trace mineral that does a lot of good in restoring those with heat exhaustion.