P for relief

The second must abundant mineral in the body is phosphorous
It's called phosphorous as it emits light but for the real science nuts amongts you it does this by chemiluminescence, not phosphorescence.

'The main function of phosphorus is in the formation of bones and teeth.

It plays an important role in how the body uses carbohydrates and fats. It is also needed for the body to make protein for the growth, maintenance, and repair of cells and tissues. Phosphorus also helps the body make ATP, a molecule the body uses to store energy.

Phosphorus works with the B vitamins. It also helps with the following:

• Kidney function
• Muscle contractions
• Normal heartbeat
• Nerve signaling

Food Sources

The main food sources are the protein food groups of meat and milk. A diet that includes the right amounts of meal plan calcium and protein will also provide enough phosphorus.

Whole-grain breads and cereals contain more phosphorus than cereals and breads made from refined flour. However, the phosphorus is stored in a form that is not absorbed by humans.

Fruits and vegetables contain only small amounts of phosphorus.

Side Effects

Phosphorus is so readily available in the food supply so deficiency is rare.

Excessively high levels of phosphorus in the blood, although rare, can combine with calcium to form deposits in soft tissues such as muscle. High levels of phosphorus in blood only occur in people with severe kidney disease or severe dysfunction of their calcium regulation.'

Source: https://www.nlm.nih.gov/medlineplus/ency/article/002424.htm
 

Another metal today - potassium
It's a soft solid at room temperature that can be cut easily to show a shiny silver surface with discolours quickly to grey as it oxidises.

'Potassium is a mineral that the body needs to work normally. It helps nerves and muscles communicate. It also helps move nutrients into cells and waste products out of cells. A diet rich in potassium helps to offset some of sodium's harmful effects on blood pressure.

Most people get all the potassium they need from what they eat and drink. Sources of potassium in the diet include

• Leafy greens, such as spinach and collards
• Fruit from vines, such as grapes and blackberries
• Root vegetables, such as carrots and potatoes
• Citrus fruits, such as oranges and grapefruit'

Source: https://www.nlm.nih.gov/medlineplus/potassium.html

This mineral is also in some of my favourite 'post-gym' snack foods - bananas and dates.