Vitamins Deficiencies That Cause Dry Mouth: Causes And Treatment

Published on March 9th, 2023

Last updated on March 9th, 2023

Do you drink water, and your mouth is dry anyway? You probably have a fairly common problem – dry mouth. Most people do not even suspect this can happen due to a lack of vitamins. Vitamins that cause dry mouth are: A, D, and C. And the best solution in this situation is:

  • Eat more healthy foods with vitamins;
  • Take food supplements for dry mouth;
  • Drink enough water.

Saliva performs an important protective role for teeth and gums. A healthy person typically produces 0.5 to 1.5 liters of saliva each day. If less than 0.1 ml of saliva is produced per minute, it provokes the appearance of a dry mouth. In medicine, it is called medical xerostomia.

Often among the reasons for its appearance are deficit of vitamins that cause dry mouth. It especially refers to vitamin A, which is crucial for saliva production. When the body does not get enough of this nutrient, it can’t function properly.

Then there is a failure of certain functions, one of which is saliva production. And when it is lacking, it brings discomfort and poor health. So, in this case, use those vitamins that you lack. And also, drink a lot of water to speed up saliva production.

What Vitamins Deficiencies Cause Dry Mouth?

The lack of vitamins or other components quickly affects the production of saliva, the density of the gums, and the health of the oral cavity. It is because vitamins are responsible for the work of specific organs. And some vitamins are also responsible for the production of saliva.

If you have a deficiency of them, it causes a malfunction of the oral cavity. Then you get dry mouth, bad breath, and the like. So, to avoid this, you should prevent nutrient deficiency in the body. It will help keep health in balance and prevent various disorders. So there are vitamins that cause dry mouth:

1. Dry Mouth Cause: Vitamin A

Vitamin A and dry mouth are closely related. The fact is that Vitamin A (retinol) promotes the production of saliva. If you do not have enough retinol, the saliva in your mouth decreases accordingly. Then a person can observe dryness of the mouth and skin mucous membrane. The mucous membrane loses its shine and becomes cloudy.

Symptoms of dry mouth with Vitamin A deficiency:

  • The gums begin inflating, and swelling and redness appear;
  • The enamel becomes rough;
  • Long-term healing of wounds is in the mouth.

2. Dry Mouth Cause: Vitamin D

Vitamin D for dry mouth is crucial. A diet deficient in vitamin D causes burning mouth syndrome. Symptoms can include a metallic or bitter taste in the mouth. So, you should take supplements for a dry mouth with Vitamin D in this case.

Symptoms of dry mouth with Vitamin D deficiency:

3. Dry Mouth Cause: Vitamin B

B vitamins participate in many redox reactions in the human body. For example, a lack of vitamin B3 can cause bad breath. Mouth ulcers can also develop due to insufficient vitamin B12 and B2.

To avoid these problems, take supplements with Vitamin B for dry mouth. Or eat food with a high content of these vitamins. Then you can quickly get rid of unpleasant sensations in your mouth.

Symptoms of dry mouth with Vitamin B deficiency:

  • Too much dryness in the mouth;
  • Bad breath;
  • Ulcers in the mouth and around the lips.

4. Dry Mouth Cause: Vitamin E

Vitamin E is a powerful antioxidant. It is another vitamin that causes dry mouth. It is useful for the restoration of oral tissues. A sufficient amount of it in the human body keeps the mucous membrane of the mouth in good condition.

Regular use of this mineral protects tooth enamel. If you have a vitamin E deficiency, dry mouth will appear sooner or later. After all, without it, saliva can’t be secret in the amount in which it is needed. So, eat nuts, avocados, and vegetables so that dry mouth does not bother you because of this Vitamin.

Symptoms of dry mouth with Vitamin E deficiency:

  • Dry mouth;
  • Ulcers in the oral cavity;
  • Increased tooth sensitivity.

What Vitamins And Supplements To Take For Dry Mouth?

Pay attention to liquid supplements, vitamins A, D, and calcium for dry mouth. The way to cure dry mouth is to end the cause of the disease. If an infection does not cause it, you can eliminate this problem yourself.

For this, you should take vitamins or supplements for dry mouth. Saturating your body with it can solve the problem of unpleasant sensations in the mouth. And you can improve health in general:

1. Calcium

Bones and teeth contain 99% of all calcium in the body. This trace element is involved in forming bone tissue and tooth enamel. It helps maintain teeth’ strength and proper oral cavity functioning. That is why this vitamin for dry mouth is so effective:

  • Milk and dairy products, such as cheese and yogurt, are the richest in calcium;
  • Calcium from dairy products is well absorbed in the body;
  • A lot of calcium is in canned salmon and sardines with bones;
  • For a vegetarian diet, green leafy vegetables and vitaminized cereal flakes are suitable sources of calcium.

2. Liquid Immunity Drops

A lack of vitamins equals weak immunity. So, it is necessary to take extra supplements for a dry mouth. One of the best options is immunity drops:

  • They are 100% natural and gluten-free;
  • Their content is rich in Vitamin C and adaptogens;
  • So, this use has a significant effect on the health of the oral cavity;
  • It will improve your immunity and saturate it with the necessary natural components. With such liquid supplements, you will forget about dry mouth.

3. Vitamin D

Vitamin D is important in maintaining oral health. That is, it has a good effect on the health of the teeth. Besides, it is good for mucous membranes of the mouth and the normalization of saliva removal. 

Studies show that this vitamin improves calcium absorption from food and its entry into the bloodstream:

  • This vitamin is synthesized in the body independently under the influence of sunlight;
  • Dietary sources of vitamin D include fish oil, eggs, cod liver, butter, and olive oil.

4. Vitamin A

When treating dry mouth, it is impossible not to mention vitamin A – retinol. It has antioxidant properties. So, it is beneficial for the health of the oral cavity. Vitamin A promotes the division of all cells, including the mucous membranes of the gums.

Thus, its sufficient amount in the body perfectly normalizes the secretion of saliva. Besides, Vitamin A supports the healthy condition of tooth enamel:

  • It contains in many foods, such as spinach, dairy, and liver;
  • Consume this vitamin from meat, poultry, dairy, and other animal products;
  • Other sources are foods rich in beta-carotene. It includes green leafy vegetables, carrots, and pumpkins.


A dry mouth is a severe medical problem that has bad consequences. The problem can go so far that you can’t speak properly because of the dryness. And all because your body needs vitamins that it lacks. So, to forget about this problem once and for all, take vitamins for dry mouth. Besides, remember to drink water and eat healthy food.


Can the deficiency of supplements cause dry mouth?

Vitamin A and D deficiency can cause dry mouth. Usually, this rarely happens, but it is quite possible. After all, more and more people suffer from vitamin deficiency. And the consequence of dry mouth is one of the common ones.

Why do I have a dry mouth suddenly?

A dry mouth occurs when the salivary glands do not produce enough saliva in the mouth. It is a consequence of not drinking enough water. Or it can result from a deficiency of vitamins that ensure the normal functioning of the salivary glands.

What fruits help a dry mouth?

Citrus fruits help best with this. Oranges, lemons, and grapefruits contain a lot of liquid. It is Vitamin C, which is very important for a healthy oral cavity.

How to help ease a dry mouth yourself?

The best advice is to drink plenty of water. Drink it throughout the day, and the dryness will begin to disappear. Taking special supplements for dry mouth and eating healthy food is also helpful. It can significantly improve the functioning of the salivary glands.

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