B12 is found in lots of animal products including meat, fish and cheese. However, it can also be found in some fortified cereals and yeast products like Marmite.
Without enough B12 it can prevent our red blood cells from functioning properly, leading to anaemia. This is why some of the most common symptoms of B12 deficiency include:As soon as you think you might have a B12 deficiency you can begin to treat it.
Upping the intake of the vitamin in your diet will help, or if it is more severe B12 supplements or injections from a GP will be needed. READ MORE: Asda employee shares red flag skin cancer symptom that led to terminal diagnosisOne report found that a "series of patients" with B12 deficiencies all experienced the same issues overnight.
The research, put together by a doctor from a Canadian hospital, concluded that "drenching night sweats" could be linked to the deficiency.
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