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December 8, 2025

Vitamin deficiency can arise from many factors and not just from poor diet. Your body requires 13 essential vitamins in small amounts, each playing a unique role in maintaining normal functions. When these vitamins are not supplied adequately, deficiencies develop, leading to various health issues depending on which vitamin is lacking.

A Complete Vitamin Profile helps identify these deficiencies. Once the shortage is detected, it is usually managed through dietary changes, supplements, or both. In severe cases, intravenous vitamin therapy may be necessary.


The 13 Essential Vitamins

  • Vitamin A

  • Vitamin C

  • Vitamin D

  • Vitamin K

  • Vitamin E

  • Vitamin B12 (cobalamin)

  • Vitamin B9 (folate)

  • Vitamin B5 (pantothenic acid)

  • Vitamin B3 (niacin)

  • Vitamin B2 (riboflavin)

  • Vitamin B7 (biotin)

  • Vitamin B1 (thiamine)

  • Vitamin B6 (pyridoxine)


Common Vitamin Deficiencies & Their Impact

Each vitamin supports different functions — some protect nerves, some strengthen immunity, some help in energy production, and others assist in blood clotting. Here is how common deficiencies affect health:

Vitamin Deficiency Effect on Health
Vitamin A Vision issues, skin problems
Vitamin D Bone weakness and abnormalities
Vitamin K Difficulty in blood clotting
Iron Leads to anemia
Vitamin B12 Causes anemia and nerve issues
Vitamin E Neurological complications

Common Signs of Vitamin Deficiency

  • Tiredness and weakness

  • Brittle nails or hair

  • Bleeding gums

  • Slow wound healing

  • Restless leg syndrome

  • Hair thinning

  • Dandruff or flaky scalp

  • Changes in skin tone


What Causes Vitamin Deficiency?

While diet plays a major role, several other factors can contribute to vitamin deficiency:


1. Specific Diet Patterns

Certain dietary restrictions increase the risk of vitamin shortages:

  • Dairy-free diets → May lead to Vitamin D deficiency

  • Vegetarian or vegan diets → Higher risk of Vitamin B12 & biotin deficiency

  • Gluten-free diets → May cause low thiamine and folate levels

  • Low fruit & vegetable intake, high processed foods → Can cause Vitamin K & E deficiencies


2. Underlying Health Conditions

Some medical issues interfere with vitamin absorption or metabolism:

  • Liver disorders

  • Alcoholic liver disease

  • Kidney problems

  • Malabsorption disorders

  • Chronic diarrhea

  • Gastric bypass surgery

  • IBS, Crohn’s disease

  • Other inflammatory bowel diseases


3. Lack of Sun Exposure

Although some foods contain Vitamin D, sunlight remains a major natural source. Limited sun exposure can lead to Vitamin D deficiency.


4. Pernicious Anemia

This autoimmune condition affects vitamin B12 absorption in the gut, eventually leading to B12 deficiency and anemia.


Identifying the root cause of vitamin deficiency is essential for proper treatment. If untreated, the deficiency may worsen over time, leading to symptoms that can significantly impact overall well-being.