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Purification is conducted with a column of SepabeadsSP700 resin (Mitsubishi), which separates various organic and inorganic impurities
When B12 levels are low, symptoms like brain fog, irritability, low mood, and difficulty concentrating often follow
Data availability Data sharing is not applicable to this review article as no new data were created or analyzed in this study
3) Sourcing becomes risky
If people are getting them from research-grade pharmacies, thats the best possibility, because at least theyre injecting what the pharmacy says theyre injecting, says Cushman
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