The question of why the urine is yellow may seem trivial, but the answer is not so trivial. Its color can be either transparent or light yellow. It is usually transparent thanks to the water we drink, but sometimes it is yellow, light yellow, in particular due to a chemical called urobilin. This chemical compound is responsible for the color of urine.
Urobilin is a decay product of bilirubin that gives a yellowish tint to bruises, bile and feces. Most of the bilirubin contained in our body is processed by the liver or, more specifically, the gall bladder and transmitted to the intestinal tract for withdrawal. Unfortunately, not all bilirubin can be excreted in this way, so the kidneys filter out everything that remains and pass into the bladder for excretion in the urine.
In the old days, when asked why urine is yellow, you would be told that this is a blessing, since our ancestors believed that this color was caused by the presence of gold in it.
However, from a medical point of view, this is due to the state of human hydration. So, the dark yellow color of urine is highly likely to indicate dehydration. Conversely, a transparent and light yellow color indicates the presence of a sufficient amount of moisture in the body.
Finally, the most common reason why urine is yellow is to take medications, in particular B vitamins.
And some more interesting facts about urine:
The strong smell of urine can be caused by alcohol, curry, asparagus, coffee, and onions.
In urine, 95% of water, its pH is close to neutral (7). However, it can vary between 6.5 and 7.4 in healthy people.
A healthy adult produces 1-2 liters of urine per day.
People who take vitamin supplements (especially B vitamins) may have fluorescent yellow or green urine.
By diluting urine in water (about 8 parts water, 1 part urine), you can get excellent fertilizers.
Some foods, such as beets, may temporarily change the color of urine. And eating a lot of carrots or carrot juice can make it orange. Asparagus dishes can cause you to have bright yellow urine.
From the foregoing, it follows that the light yellow color of urine usually indicates a healthy state of the whole human body. It will have a faint smell and be practically free of foam.
However, you should not worry about why the urine is yellow. On the contrary, its unusual color should be alarmed, which may indicate health problems. So, brown or red can indicate serious kidney problems, for example.
The best way to change the color of urine from dark to pale yellow is to drink a few glasses of water or other liquid. Most health professionals recommend drinking eight glasses of water per day, although some people may need a little more or less. After a few glasses of water, the urine should become a normal color. If it remains dark after a day of increased water consumption, it is necessary to consult a doctor to make sure that there are no medical reasons for the color change.