Research Reveals This Vitamin Deficiency Can Cause Permanent Brain Damage
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'B complex vitamins are water soluble and cannot be stored in the body, except for one form of thiamine that is fat soluble known as Benfotiamine. It’s application will be discussed later in this article.

And deficiency of thiamine or B1 is that vitamin that has been recently researched to be responsible for fatigue, neuropathy, and various manifestations of encephalopathy (brain disease). Unfortunately, fatigue is a common symptom for many illnesses and disorders. Vitamin B12 deficiency manifests as fatigue and neurological issues as well.'