5 Warning Signs of Vitamin Deficiency

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We all know that we need to get the right amount of certain vitamins and minerals throughout the day so that our body functions well and we can maintain our optimum health, but do you ever wonder if you are getting enough of the right vitamins?

There are certain signs of vitamin deficiency that you may have and not even realize it. We will go over the basics of vitamins and nutrition, as well as some common indicators of vitamin deficiency and possible remedies.

Why Are Vitamins So Important?

Vitamins and minerals are the materials that our bodies use to perform all of the basic functions, such as constantly creating new muscle, bone, and blood, as well as working with our nervous system to send messages that control systems and affect our functioning and even our sleep.¹

Vitamins and minerals are also referred to as “micronutrients” since our bodies depend on incredibly small amounts to do very important jobs and a lack of a particular micronutrient can have devastating effects. Before the role of vitamins was fully understood, diseases such as ricketts and scurvy were feared for the toll they took on the human body.¹

What Is Vitamin Deficiency?

The word “deficiency” in this case refers to a long-term (at least a couple of months) lack of a particular vital nutrient. The average person is at risk of vitamin deficiency if they do not eat a healthy balanced diet or if they have a condition that interferes with the absorption of certain vitamins or have had surgery that has altered the digestive tract in some way.²

There are 13 vitamins that are considered essential, and they all have different roles to play in the human body. A prolonged lack of any one of these vitamins can have lasting effects that may be detrimental to your health.²

Vitamin Deficiency Symptoms

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In this section we will go over some of the more common symptoms of vitamin deficiency. If you have a concern that you may be lacking in a particular vitamin, testing is available through your doctor or, in some cases, by using an at-home test kit.

Sores or Ulcers in the Mouth

Some of the most common vitamin deficiency symptoms are mouth sores or ulcers that reoccur and can take up to two weeks to heal. These painful lesions are commonly caused by a lack of one or more essential nutrients.  The most common deficiencies that cause mouth sores are  iron, vitamin B-3, vitamin C, folic acid, or vitamin B-12. These sores and vitamin deficiencies are seen most often in children, but can occur in adults as well.³

Fatigue, Aches, and Pains

While feeling tired seems to be part of our modern life, a lasting fatigue associated with aching bones and muscles or muscle weakness and cramping can be a sign of a vitamin D deficiency. Lack of vitamin D can be caused by many things besides a basic dietary lack. Not getting enough vitamin D can also lead to depression and other mood changes.⁴

Bleeding Gums

If you find that your gums bleed easily or appear inflamed, you may want to consider a deficiency of vitamin C. Our bodies cannot make their own vitamin C and if you do not eat enough fresh fruit and vegetables, it can be easy to become deficient in this important nutrient.⁵

Dry Hair and Brittle Nails

A lack of biotin (also known as vitamin B7) can lead to dry hair that damages easily and nails that are weak and crack or chip. A lack of biotin can also lead to muscle pain and cramps, as well as a sense of tingling in the extremities.⁵

Night Blindness

Not really an actual form of blindness, the term night blindness refers to an inability to see well at night or in darkened conditions. A lack of vitamin A can lead to night blindness, as well as the growth of white spots on the eyes. Check with your doctor before supplementing with vitamin A, as too much of it can be toxic.⁵

Forrest Health Is Your Source for Vitamins

Here at Forrest Health, we carry everything you might need to supplement your diet with vitamins and minerals for optimum health. Shop our selection of vitamins today.


  1. https://www.helpguide.org/harvard/vitamins-and-minerals.htm
  2. https://www.verywellhealth.com/can-vitamin-deficiency-cause-insomnia-3014720
  3. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1479540/
  4. https://my.clevelandclinic.org/health/articles/15050-vitamin-d–vitamin-d-deficiency#symptoms-and-causes
  5. https://www.healthline.com/nutrition/vitamin-deficiency#3.-Bleeding-gums

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