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Vitamin Deficiencies: The Hidden Reason Behind Fatigue & Hair Fall

20 Feb, 2026

Vitamin Deficiencies: The Hidden Reason Behind Fatigue & Hair Fall



🩺 Introduction: Tired All the Time? Losing More Hair Than Usual?

Do you often feel exhausted even after a full night’s sleep?
 Is hair fall becoming a daily concern?

Many people blame stress, workload, or weather changes. But the real reason may be something much simpler — vitamin deficiencies.

At PS PathLab, we frequently see patients whose fatigue and hair fall are linked to low Vitamin D, Vitamin B12, or iron levels. The good news? These issues are easily detectable and treatable when identified early.

Let’s understand how.

🔍 Why Vitamin Deficiencies Happen

Modern lifestyle factors contribute heavily to nutritional gaps:

  • Poor diet or crash dieting
  • Long indoor working hours (less sunlight)
  • Stress
  • Digestive issues
  • Vegetarian or vegan diet (risk of B12 deficiency)
  • Hormonal imbalance

Even if you eat “normally,” your body may not be absorbing nutrients properly.

🧪 1️⃣ Vitamin D Deficiency

Often called the “Sunshine Vitamin,” Vitamin D plays a crucial role in bone strength, immunity, and hair follicle health.

⚠️ Common Symptoms:

  • Constant fatigue
  • Hair thinning
  • Body pain
  • Frequent infections
  • Mood changes

🔬 Recommended Test:

  • Serum Vitamin D (25-OH Vitamin D)

Low Vitamin D is extremely common in India due to indoor lifestyles.

🧠 2️⃣ Vitamin B12 Deficiency

Vitamin B12 is essential for nerve function and red blood cell production.

⚠️ Symptoms:

  • Extreme tiredness
  • Hair fall
  • Tingling in hands/feet
  • Memory issues
  • Pale skin

B12 deficiency is common among vegetarians since it is mainly found in animal-based foods.

🔬 Recommended Test:

  • Serum Vitamin B12

Untreated deficiency can lead to nerve damage.

🩸 3️⃣ Iron Deficiency (Anemia)

Iron helps carry oxygen in your blood. Low iron = low energy.

⚠️ Symptoms:

  • Weakness
  • Hair loss
  • Dizziness
  • Shortness of breath
  • Brittle nails

Iron deficiency is especially common in women.

🔬 Recommended Tests:

  • Complete Blood Count (CBC)
  • Serum Iron
  • Ferritin

Early treatment improves energy and hair growth.

💇‍♀️ How Deficiencies Cause Hair Fall

Hair follicles need nutrients to grow. When your body lacks essential vitamins:

  • Hair growth slows
  • Hair becomes weak
  • Shedding increases
  • New hair growth reduces

Before investing in expensive hair treatments, it’s important to check internal health first.

📊 Who Is at Higher Risk?

You may be at risk if:

  • You work long hours indoors
  • You follow strict diets
  • You are vegetarian/vegan
  • You recently had pregnancy
  • You experience chronic stress
  • You have thyroid imbalance

Regular screening can prevent long-term complications.

🛡️ Why Testing Is Important Before Taking Supplements

Many people start supplements without testing. This can be risky.

Excess vitamins (especially Vitamin D) can cause toxicity.
 The correct approach is:

  1. Test
  2. Identify deficiency
  3. Treat under medical guidance
  4. Retest to monitor improvement

At PS PathLab, we provide accurate vitamin profiling to help you make informed decisions.

🧪 Recommended Preventive Tests at PS PathLab

  • Vitamin D Test
  • Vitamin B12 Test
  • Iron Studies
  • Complete Blood Count
  • Thyroid Profile (since thyroid imbalance also causes hair fall)

A combined preventive package can help identify root causes quickly.

🌿 Simple Lifestyle Tips

Along with testing:

  • Get 15–20 minutes of sunlight daily
  • Include green leafy vegetables
  • Eat nuts and seeds
  • Maintain protein intake
  • Stay hydrated
  • Avoid extreme crash diets

But remember — lifestyle changes work best when guided by test results.

❤️ Don’t Ignore the Warning Signs

Fatigue and hair fall are not just cosmetic or “normal stress.”
 They can be early indicators of underlying deficiencies.

Early detection = faster recovery = better quality of life.

📞 Take Control of Your Health Today

If you are experiencing:

✔ Persistent tiredness
 ✔ Excess hair fall
 ✔ Weakness or low energy

It’s time for a preventive health check.

Book your Vitamin & Iron profile with PS PathLab today.
Because healthy hair and energy start from within.