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  2. Vitamin B12 Is a Power Nutrient. Here's How to Know If ... - AOL

    www.aol.com/vitamin-b12-power-nutrient-heres...

    Vitamin B12 is good for your brain and may help improve memory. ... Other symptoms of vitamin B12 deficiency include memory loss, fatigue and weakness, ...

  3. Vitamin B12 deficiency symptoms - AOL

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    Vitamin B12 deficiency symptoms . Vitamin B12 deficiency has a few hallmark symptoms, according to doctors: Lack of energy. Mental fatigue. Nausea, vomiting, or diarrhea. Lack of appetite. Weight loss

  4. Vitamin B12 deficiency - Wikipedia

    en.wikipedia.org/wiki/Vitamin_B12_deficiency

    Vitamin B 12 deficiency is preventable with supplements, which are recommended for pregnant vegetarians and vegans, and not harmful in others. [2] Risk of toxicity due to vitamin B 12 is low. [2] Vitamin B 12 deficiency in the US and the UK is estimated to occur in about 6 percent of those under the age of 60, and 20 percent of those over the ...

  5. How vitamin B12 could give you an energy boost - AOL

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    poor memory. mouth soreness. How much vitamin B12 do I need per day? ... Vitamin B12 can be found in multivitamins, B-complex supplements, and by itself in a B12 supplement, which are available in ...

  6. Nutrition and cognition - Wikipedia

    en.wikipedia.org/wiki/Nutrition_and_cognition

    Intake of the vitamin has been linked to deficits in learning and memory, particularly within the elderly population. [23] Elderly people deficient in folate may present with deficits in free recall and recognition, which suggests that levels of folate may be related to efficacy of episodic memory. [ 26 ]

  7. Vitamin B12 - Wikipedia

    en.wikipedia.org/wiki/Vitamin_B12

    Vitamin B 12 is the most chemically complex of all vitamins, [6] and for humans the only vitamin that must be sourced from animal-derived foods or supplements. [ 2 ] [ 7 ] Only some archaea and bacteria can synthesize vitamin B 12 . [ 8 ]