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In some cases a B12 deficiency is linked with symptoms like nausea, bloating, or loss of appetite
PMID: 16034940 [7] Thakkar K, Billa G
Factors Contributing to Post-Injection Symptoms After receiving a vitamin B12 injection, some individuals report feeling worse, a situation that can be perplexing
Result type Safety and tolerance Examples Sleep disruption, stomach changes, heart-rate changes, other symptoms Main limit Short-term tolerance does not prove long-term safety
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