Rather, it is an amoral and scientificanalysis of rhetoric, defined as âthe faculty of discovering in the particularcase what are the available means of persuasionâ (L. Cooper, 1932, p. 7).Yet, in Rhetoric, Aristotle establishes the concept of credibility (ethos) as aform of proof and mode of persuasion.
The recommended dietary allowances (RDAs) of vitamin B12 are: Infants 0-6 months, 0.4 mcg; infants 7-12 months, 0.5 mcg; children 1-3 years, 0.9 mcg; children 4-8 years, 1.2 mcg; children 9-13 years, 1.8 mcg; older children and adults, 2.4 mcg; pregnant women, 2.6 mcg; and breast-feeding women, 2.8 mcg. Injecting vitamin B12 as a shot for 10 days followed by monthly injections for the remainder of life is effective for treating people with an inherited disease that results in poor absorption of vitamin B12. 2  Pernicious anemia.
Consume 25 mcg of vitamin B12 as a supplement. Even though food contains B12, a substance secreted by the stomach -- active intrinsic factor -- must be present if B12 from food is to be absorbed. Unfortunately, production of this factor decreases with age.Crystalline B12 in supplements does not require this intrinsic factor for absorption. Therefore, you should take B12 as a supplement, and you won't be reliant on the presence of intrinsic factor.ven though food contains B12, a substance secreted by the stomach -- active intrinsic factor -- must be present if B12 from food is to be absorbed. Unfortunately, production of this factor decreases with age. Crystalline B12 in supplements does not require this intrinsic factor for absorption.