In January 2013, the Qatar Statistics Authority estimated the country's population at 1,903,447, of which 1,405,164 were males and 498,283 females. At the time of the first census, held in 1970, the population was 111,133.
A metallic taste in the mouth can be attributed to many factors, but the most common causes of this are: 1  Excessive Iron levels in the blood.  Side effect of medications (especially ones used to treat high blood pressure, arthritis and anti-depressants)
Sour taste in mouth after eating. If you experience sour taste in mouth after eating, your foods can cause this. You need to check your foods and make a list of foods, which cause sour taste. Some people also experience sour taste on the tongue, which occurs due to sour food products.