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These can be signs of an early B12 deficiency or other nutritional deficiencies like folate, vitamin B2 (riboflavin), and vitamin B3 (niacin) deficiency
Allergy risk to cobalt or preservatives (rare) Energy improvement: 24-72 hours Reticulocyte response: 3-5 days Neurological improvement: Weeks to months Hematological normalization: 4-8 weeks Maximum nerve repair: Up to 1 year Injection site reactions (15-20%) Mild diarrhea (initial doses) Itching/eczema (cobalt sensitivity) Transient anxiety (overstimulation) Headache (usually resolves quickly) Serious reactions are extremely rare
These two forms of B12 have the same effects but have their own different strengths in different situations
In lyophilized (powder) form, store in freezer for up to 2 years
Vitamin C
Why Age Affects B12 Absorption As we get older, our bodies naturally go through changes, and one of those changes can affect how we process nutrients
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