هل يمكن لفيتامين B-12 تحسين الذاكرة لدى المصابين بمرض الزهايمر؟

إجابة من جوناثان غراف رادفورد، (دكتور في الطب)

يساعد فيتامين B-12 في الحفاظ على الخلايا العصبية الصحية وكرات الدم الحمراء. يمكن أن يسبب نقص فيتامين B-12 — الأكثر شيوعًا لدى كبار السن والنباتيين — في ظهور علامات وأعراض مختلفة، بما في ذلك فقدان الذاكرة. في هذه الحالات، يمكن أن تساعد مكملات فيتامين B-12 في تحسين الذاكرة.

إلى جانب معالجة نقص فيتامين B-12، ليس ثمة دليل واضح على أن مكملات فيتامين B-12 تساعد على تحسين الذاكرة لدى الأشخاص المصابين بمرض الزهايمر.

تشير بعض الدراسات إلى أن انخفاض مستويات فيتامين B-12 قد ترتبط بزيادة خطر الإصابة بالخرف. ولكن لم يتم إثبات أن مكملات فيتامين B تحسن وظيفة الدماغ أو أعراض فقدان الذاكرة.

وبغض النظر عن دوره في الذاكرة، يبقى فيتامين B-12 جزءًا مهمًا من النظام الغذائي الصحي.

تم العثور على فيتامين B-12 بشكل طبيعي في الأطعمة التي تأتي من الحيوانات، بما في ذلك الأسماك واللحوم والدواجن. يتم تعزيز العديد من حبوب الإفطار بإضافة فيتامين B-12.

إذا كنت قلقًا من عدم حصولك على ما يكفي من فيتامين B-12 أو المغذيات الأخرى، فاستشر طبيبك — ولا سيما إذا كنت بالغًا أو شخصًا نباتيًا.

With

جوناثان غراف رادفورد، (دكتور في الطب)

07/09/2019 See more Expert Answers

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