“In rare cases, it can cause heart and fertility problems,” said Dr Shahaney.
“Thriva actually offer a vitamin B12 test [£27] so users can check if they think their levels might be low,” Dr Shahaney pointed out.
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Alternatively, you can book a blood test via your doctor’s surgery – just make sure to tell your GP that you want your vitamin B12 levels checked.
The NHS added other symptoms you might experience if a vitamin B12 has lead to a deficiency. This includes:
- Lethargy
- Breathlessness
- Feeling faint
- Headaches
- Pale skin
- Noticeable heartbeats
- Tinnitus
- Loss of appetite
- Weight loss.
Source: Daily Express
