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Problems with bodily absorption of the vitamin appear in 20% of people over 60 in the United States and United Kingdom according to research, and people with vegetarian or vegan diets are more likely to struggle with this condition

And while adequate B12 levels are essential for good health, research has shown that additional intake will not provide additional health benefits for those who are otherwise healthy

These sample protocols provide starting frameworks adaptable to individual needs

If you dont have PA but are B12 deficient, then eating B12 rich foods (like red meat, liver, fish, dairy, eggs) or supplementation is recommended