Which of the following minerals may be found in your perspiration 1 Sodium 2 Calcium 3 Zinc 4 Copper...........

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Which of the following minerals may be found in your perspiration ?

1.Sodium

2.Calcium

3.Zinc

4.Copper

Select the correct answer using the codes below.

1 only

2 and 3 only

1, 2 and 4 only

1, 2 , 3 and 4

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Explanation:

Perspiration contains many minerals such as sodium (Na), potassium (K), calcium (Ca), and magnesium (Mg). Others such as zinc, copper, iron are found in trace amounts.
Some reports suggest that loss of minerals such as copper, zinc and iron through sweat can be substantial. For example, it has been reported that during a marathon, iron loss can be up to 2.5 mg per liter of sweat (a marathoner can lose 4L of sweat in one race). Adults typically need 8 (male) to 18 mg (female) of iron per day.