Which Vitamin Deficiency Causes Hair Loss And Promotes Hair Growth?

Hair loss persists as a concern for millions of people worldwide. Hair loss can be attributed to several reasons, such as heredity, hormone imbalances, and nutritional inadequacies. Regarding dietary inadequacies, you would want to know which vitamin deficiency causes hair loss.

 Vitamin B and D are frequently suggested as a possible cause of hair loss. Maintaining a healthy scalp and encouraging strong hair development depend on vitamin D and vitamin A for scalp health, vitamin E for blood circulation to the scalp, and biotin, which is renowned for promoting healthy hair, skin, and nails.

Additionally, folate aids tissue growth, while vitamin B2 supports amino acid metabolism, vital for hair structure. Vitamin B12 is essential for red blood cell production, ensuring adequate oxygen and nutrients reach the scalp and hair follicles. Vitamin deficiency could interfere with these functions, causing more shedding and less density in the hair. Read this blog to learn how various vitamins affect hair growth and fall.

Table Of Contents

1. Which Vitamin Deficiency Causes Hair Fall?

2. Dietitian’s Recommendation

3. The Final Say

4. FAQs

5. References

Which Vitamin Deficiency Causes Hair Fall?

To answer your question- which vitamin deficiency causes hair loss in detail, here is a list of vitamins that play a role in hair loss as well as hair growth-

1. Vitamin D Deficiency

Inadequate vitamin D levels can disrupt the hair growth cycle, as vitamin D receptors are present in hair follicles. Research suggests that vitamin D plays a crucial role in regulating hair follicle cycling and promoting the proliferation of hair follicle cells. Consequently, abnormalities in the hair growth cycle caused by vitamin D deficiency can cause hair thinning or loss.

2. Vitamin A Deficiency

Vitamin A is significant for maintaining a healthy scalp by regulating sebum production. Vitamin A deficiency can lead to decreased sebum secretion, causing the scalp to become dry and flaky. This adverse scalp condition can hinder healthy hair growth, as the hair follicles may not receive the necessary lubrication and nourishment.

3. Vitamin E Deficiency

Vitamin E is rich in antioxidants and plays a role in maintaining vascular health. Scalp microcirculation is crucial for delivering oxygen and nutrients to the hair follicles. 

Vitamin E deficiency can compromise scalp microcirculation, reducing blood flow to the hair follicles. As a result, hair follicles may receive insufficient oxygen and nutrients, impairing their growth and contributing to hair loss.

4. Biotin (Vitamin B7) Deficiency

Biotin is a cofactor for enzymes involved in synthesising keratin, the protein that forms the structural foundation of hair. Insufficient biotin levels can decrease keratin production, making brittle hair prone to breakage. Additionally, biotin deficiency may disrupt the hair growth cycle, increasing hair shedding.

5. Folate (Vitamin B9) Deficiency

Folate is vital for DNA synthesis and cell division, including the cells within hair follicles. Folate deficiency can disrupt cell division in the hair follicles, affecting their renewal and leading to hair loss.

6. Vitamin B12 Deficiency

Red blood cells, which carry oxygen to organs, require vitamin B12 to generate scalp and hair follicles. Anaemia resulting from vitamin B12 deficiency can reduce the oxygen supply to the hair follicles, impairing their growth and contributing to hair loss. Vitamin B12 deficiency may also disrupt DNA synthesis and cell division in hair follicles, further exacerbating hair loss.

Also Read- What Vitamins Are Good For Hair Growth? Here’s What You Need To Know!

Best Hair Loss Supplement As Per Dietitian’s Recommendations

As a dietitian, I suggest ToneOp Care’s Black Seed Oil to combat hair loss. It boosts the growth of lustrous, natural-looking hair. Increase vitamin D intake with fatty fish-fortified dairy and vitamin A intake with fruits and veggies. Get vitamin E from nuts and seeds. For biotin, include eggs and whole grains; for folate, focus on leafy greens and legumes. Prioritise these vitamins and supplements for healthy hair growth and prevention of hair loss.

                                                                                       Dt. Aditi Upadhyay

The Final Say

In conclusion, deficiencies in vital vitamins like D, A, E, biotin, folate, and B12 can lead to hair loss. Each vitamin plays a unique role: D regulates hair growth, A affects scalp health, E impacts blood flow to hair follicles, biotin influences keratin production, folate aids cell division, and B12 supports oxygen supply to follicles. Proper vitamin intake is critical to preventing hair loss and maintaining healthy hair.