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)
For changes to your sense of taste: Foods may seem to have no taste or may not taste the way they used to or food may not have much taste at all. Radiation therapy may cause a change in sweet, sour, bitter, and salty tastes. Chemotherapy drugs may cause an unpleasant chemical or metallic taste in your mouth.