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Description
Most people tolerate B12 shots well
I appreciated that they reviewed my history instead of assuming every low-energy problem is a B12 problem

While a 2008 study 4 suggests that low vitamin D levels contribute to a worsening of Parkinsons symptoms, a 2015 study 5 suggests that thiamine, also known as vitamin B1, levels may also be a factor
This means that it may help reduce the risk of developing dementia or memory loss
doi:10.1155/2020/6805354 Lee E, Padgett B