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However, one study reported that children and adults with normal to elevated levels of serum vitamin B1 had many symptoms normally associated with vitamin B12 deficiency, including fatigue, depression, anxiety, lack of motivation, poor memory, fuzzy thinking, peripheral neuropathy and difficulty sleeping

B12 helps support red blood cell production, maintain nerve function, and assist in DNA synthesis

As a result, incompletely digested, potentially inflammatory food particles and toxins can enter the bloodstream

Most users experience no serious side effects , especially when protocols are followed carefully over 612 weeks