Vitamin B12 is found naturally almost only in animal foods, so vegetarians, and especially vegans, are at higher risk of low levels. Common signs include tiredness, tingling in hands and feet, and a sore tongue, but the only way to know is a blood test. Your doctor will decide whether you need a supplement.
Key Takeaways
- B12 is needed for nerves, red blood cells and DNA production.
- Plant foods do not reliably supply B12. Milk, curd, paneer and eggs contain some, so lacto-vegetarians are less at risk than vegans.
- Deficiency can develop slowly, and nerve symptoms can be permanent if untreated for long.
- Do not self-diagnose: tingling and fatigue have many causes.
- Supplements or injections are used when levels are low, based on medical advice.
Why Are Vegetarians at Risk?
Vitamin B12 is made by bacteria and ends up in animal foods such as meat, fish, eggs and dairy. A vegetarian who eats dairy and eggs can meet part of the need, but an intake that is low or irregular can still lead to deficiency over time. Age, stomach acid problems, some stomach surgeries and long-term use of certain medicines (such as metformin or acid-reducing drugs) can also reduce absorption, even when intake looks adequate. (NIH Office of Dietary Supplements)
Symptoms of B12 Deficiency
- Unusual tiredness and weakness
- Pale or yellowish skin
- Tingling, numbness or pins and needles in hands and feet
- Sore, red tongue and mouth ulcers
- Poor balance, memory problems or low mood
- Breathlessness and dizziness (from anaemia)
These symptoms overlap with other problems such as iron deficiency or thyroid disease. Nerve-related symptoms deserve prompt medical attention. You can read about one nerve-support combination in our post on Nervisave tablet uses, but the right treatment depends on your test results.
B12 in Vegetarian Foods
| Food | Notes |
|---|---|
| Milk, curd, paneer, cheese | Contain B12; amounts vary and cooking or boiling can reduce some |
| Eggs | A source for egg-eating vegetarians |
| Fortified foods (some cereals, plant milks, nutritional yeast) | Check the label for B12 added |
| Spirulina, sprouts, mushrooms, fermented foods | Not reliable sources; avoid depending on them |
When Do You Need a Supplement?
- If a blood test shows low B12.
- If you follow a vegan diet (supplements or fortified foods are generally advised).
- If you are older, have absorption problems or take long-term metformin or acid-reducing medicines, ask your doctor about testing.
- During pregnancy or breastfeeding on a vegetarian or vegan diet, speak to your doctor.
Doctors may prescribe tablets or injections depending on how low your level is and whether absorption is the cause. The NHS explains the usual treatment approach for deficiency: NHS: B12 or folate deficiency anaemia.
Safety
B12 is water-soluble and generally well tolerated, but self-treating can hide the cause of your symptoms. High doses are not needed unless prescribed. For more on protecting your nutrition through diet, see how to start an Ayurvedic lifestyle.
FAQs
Is B12 deficiency common in India?
It is widely reported, particularly among vegetarians, but exact figures vary between studies, so get tested rather than assume.
Can I get enough B12 from curd and milk?
Some people can; others cannot. A blood test is the way to check.
Can B12 deficiency be reversed?
Blood and energy problems often improve with treatment, but nerve damage may take longer and can be permanent if untreated for a long time.
Conclusion
If you are vegetarian and feel unusually tired or notice tingling, ask your doctor for a B12 test. Treatment is simple once the cause is known.
References
- NIH Office of Dietary Supplements: Vitamin B12 fact sheet
- NHS: Vitamin B12 or folate deficiency anaemia
This article is for general information only and is not medical advice. Do not start, stop or change any medicine or supplement without speaking to a qualified doctor or pharmacist.