The bitter taste in the mouth can have several causes, ranging from simpler problems, such as poor oral hygiene or the use of some medications, to more serious problems, such as yeast infection or reflux, for example.
In addition, the use of cigarettes can also give a bitter taste in the mouth, which lasts between a few minutes to a few hours. Usually, this type of change in taste improves after eating other foods, drinking water or brushing your teeth.
However, if the bitter taste lasts for a long time or if it appears very often, it is recommended to consult a general practitioner or gastroenterologist to identify if there is any disease that may be causing the symptom and start appropriate treatment.
1. Poor oral hygiene
This is the most common cause of bitter taste in the mouth, especially when waking up, and it happens due to the accumulation of saliva and bacteria on the tongue, teeth and gums, causing bad breath.
What to do: just brush your teeth and maintain a routine of at least 2 brushes a day, one after waking up and the other before going to sleep, for example. In addition, it is also very important to brush your tongue well because the accumulation of dead bacteria cells, also known as tongue coating, is the main cause of bitter taste in your mouth.
2. Use of antibiotics or antidepressants
There are some remedies that, when ingested, are absorbed by the body and released into saliva, leading to a change in taste, leaving the mouth to the sea. Some examples are antibiotics, such as tetracyclines, gout remedies, such as allopurinol, lithium or medicines used to treat some heart disease.
In addition, people who use antidepressants may also have dry mouth more often, which alters taste, as taste buds are more closed.
What to do: the bitter taste usually disappears after a few minutes of taking this type of medication. However, if it is constant and uncomfortable, you can consult the doctor to assess the possibility of using another medicine that does not cause this type of side effects.
Dysgeusia, also known as metallic taste in the mouth, is a symptom very common to several women during the first trimester of pregnancy. This is due to the hormonal changes that happen in the woman's body, making the palate more refined.
That way, some pregnant women may report a similar taste to having a coin in their mouth or drinking water from a glass made of metal, for example.
What to do: a great way to eliminate the bitter taste from your mouth is to drink lemonade or suck on a lemon popsicle. This change usually lasts only a few days, disappearing naturally.
4. Use of vitamin supplements
Some vitamin supplements that contain high amounts of metallic substances, such as zinc, copper, iron or chromium, can lead to the appearance of a metallic and bitter taste in the mouth. This side effect is very common and usually appears when the supplement is completely absorbed by the body.
What to do: in these cases, wait a few minutes to allow the body to absorb the supplement. If the bitter taste is too intense or appears too often, you can consult the doctor to assess the possibility of reducing the dose or changing the supplement.
5. Gastroesophageal reflux
Reflux occurs when the contents of the stomach reach the esophagus, after starting digestion, transporting acid to the mouth, which leaves the mouth with a bitter taste and even a bad smell.
What to do: one should avoid eating very fatty or difficult to digest foods, as they increase the production of acid by the stomach. In addition, it is also important to avoid very large meals, as they make it difficult to close the stomach.
6. Hepatitis, fatty liver or cirrhosis
When the liver is not functioning properly, the body begins to accumulate high amounts of ammonia, which is a toxic substance, which is usually transformed into urea by the liver and eliminated in the urine. These increased levels of ammonia cause a taste change, similar to fish or onions.
What to do: liver problems are usually accompanied by other symptoms such as nausea or excessive tiredness. Therefore, if liver disease is suspected, a hepatologist should be consulted for blood tests and confirmed the diagnosis, starting treatment if necessary.
7. Cold, sinusitis and other infections
Upper respiratory tract infections, such as colds, rhinitis, sinusitis or tonsillitis, for example, can cause a bitter taste in the mouth, due to the substances produced by bacteria from this type of infections.
What to do: in these cases it is important to drink at least 2 liters of water per day, as it helps to relieve bitter taste and facilitates recovery. However, it is important to consult a general practitioner to identify the specific cause and initiate appropriate treatment.
8. Diabetic ketoacidosis
Ketoacidosis is a consequence of diabetes, in which due to the large amount of glucose in the blood and little inside the cells, there is a greater production of ketone bodies in an attempt to provide enough energy for the proper functioning of the organism.
Due to the greater amount of ketone bodies circulating in the blood, there is a decrease in blood pH, which can be perceived through the appearance of some signs and symptoms such as bitter mouth, intense thirst, bad breath, dry mouth and mental confusion.
What to do: it is important that the glycemia of the diabetic person is measured regularly and, if it is found that the amount of glucose is 3 times higher than normal, it is extremely important to go immediately to the emergency room or hospital, as it is indicative of ketoacidosis.
In the hospital, the person is monitored and insulin and serum are administered directly into the vein to maintain the person's hydration and decrease the amount of glucose in the blood.
(Reference - https://www.healthline.com/health/bitter-taste-in-mouth#home-remedies, https://www.medicalnewstoday.com/articles/321175)
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