
Vitamin B12 Deficiency: Symptoms, Risk Factors and What to Do
Vitamin B12 deficiency symptoms — tingling, fatigue, memory issues and more. Who's at risk in India and how to fix it. Prakash Hospital Noida.
30 Sept 2026
by Prakash Hospital

Understand how Vitamin B6 creates vital neurotransmitters, regulates your mood, and discover the top dietary sources in India to prevent cognitive decline.
If your brain were a chemistry lab, Vitamin B6 (Pyridoxine) would be the lead scientist. Your body absolutely requires Vitamin B6 to manufacture crucial neurotransmitters—the chemical messengers that dictate how you feel, think, and sleep. Without B6, you cannot properly produce Serotonin (the "happy" hormone), Dopamine (the "reward" hormone), or Melatonin (the sleep hormone). Beyond the brain, B6 works closely with Folate (B9) and B12 to control levels of homocysteine in the blood; high homocysteine is a major risk factor for heart attacks and strokes. It also helps your body break down proteins and carbohydrates into usable energy. When B6 levels drop, the first signs are almost always neurological, ranging from unexplained irritability and brain fog to tingling in the extremities.
The Indian Council of Medical Research (ICMR) recommends:
*Pregnant women need 2.3 mg/day, as B6 is vital for fetal brain development and helps combat morning sickness.
Vitamin B6 is widely available in both plant and animal foods. However, the B6 from animal sources is generally more bioavailable (easier for your body to absorb).
| Rank | Food Item | Type | Estimated Amount (Per 100g) |
|---|---|---|---|
| 1 | Chickpeas (Kabuli Chana) | Vegetarian/Legume | ~ 0.54 mg |
| 2 | Chicken Breast | Non-Veg | ~ 0.90 mg |
| 3 | Rohu / Salmon Fish | Non-Veg | ~ 0.60 mg |
| 4 | Potatoes (with skin) | Vegetarian/Veg | ~ 0.30 mg |
| 5 | Bananas (Kela) | Vegetarian/Fruit | ~ 0.37 mg |
| 6 | Pistachios (Pista) | Vegetarian/Nut | ~ 1.70 mg (High concentration) |
| 7 | Sunflower Seeds | Vegetarian/Seeds | ~ 1.34 mg |
| 8 | Spinach (Palak) | Vegetarian/Veg | ~ 0.20 mg |
| 9 | Mutton Liver | Non-Veg | ~ 1.00 mg |
| 10 | Onions (Pyaz) | Vegetarian/Veg | ~ 0.12 mg (Provides steady daily amounts) |
Because B6 is critical for both nerve function and blood cells, deficiency symptoms often mimic a combination of anemia and neuropathy.
A sudden drop in serotonin can lead to depression, anxiety, extreme irritability, and confusion.
Unlike B12, B6 deficiency causes red blood cells to become unusually small and pale, leading to chronic fatigue.
Similar to B2 deficiency, a lack of B6 can cause a swollen, red tongue and cracked sores at the corners of the mouth.
While Vitamin B6 is water-soluble, it is one of the few B-vitamins that can cause severe toxicity if you take high-dose supplements (often found in unregulated pre-workout powders or mega-B-complexes).
If you are pregnant and suffering from debilitating morning sickness, do not suffer in silence. Vitamin B6 is clinically proven to help, but the dosage must be controlled by a doctor. Likewise, if you develop tingling in your hands and feet (especially if you've been taking high-dose fitness supplements), you must seek neurological evaluation immediately.
At Prakash Hospital, our Obstetrics & Gynaecology department safely prescribes B6 therapies for expectant mothers, while our Neurology team can accurately diagnose and treat neuropathies caused by either vitamin deficiencies or toxicities.
Determine your estimated delivery date (EDD), track your current week of gestation, and follow trimester milestones.
Health CalculatorsPlan your exact target daily calorie requirements and macronutrient splits based on your body composition goals.
Essential for nerve function and red blood cell production. Very common deficiency in vegetarians.
Nutrition GuidesFamous for promoting healthy hair, skin, and nails. Crucial for metabolism.
Nutrition GuidesSupports cholesterol management, brain function, and helps prevent Pellagra.
Estimate your lean body mass (fat-free weight) using Boer, Hume, or direct body fat percentage inputs.
Diet ChartsA week of Indian vegetarian and non-vegetarian meals built around protein.
Diet ChartsWhat to eat and avoid with hypothyroidism or hyperthyroidism, Indian style.
Free tools to check your weight, plan a pregnancy, track calories and more.

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