Vitamin B12 deficiency: Sensation felt after a small amount of exercise warning low levels

Without enough oxygen, patients can feel short of breath or dizzy – particularly after exercising – according to nutritionist Helen West.

But there are a number of reasons why people feel dizzy, so speak to a doctor to find its true underlying cause, she said.

“If you become anaemic due to a B12 deficiency, you may feel short of breath and a bit dizzy, especially when you exert yourself,” said the nutritionist.

“This is because your body lacks the red blood cells it needs to get enough oxygen to your body’s cells.

“However, these symptoms can have many causes, so if you notice that you are unusually breathless, you should speak to your doctor to investigate the cause.”


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