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5 This can have significantly detrimental effects on the nervous system, cell division, and other methylation processes

[7] And ferritin levels under 10 ng/mL are considered deficient

Injections deliver the vitamin directly into the bloodstream, ensuring faster and more reliable results

Some evidence also points to potential anti-aging and muscle-preserving effects when paired with exercise and proper nutrition

[2] Other conditions giving rise to malabsorption include surgical removal of the stomach, chronic inflammation of the pancreas, intestinal parasites, certain medications such as long-term use of proton pump inhibitors, H2-receptor blockers, and metformin, and some genetic disorders

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