A deficiency of riboflavin can be primary - poor vitamin sources in one's daily diet - or secondary, which may be a result of conditions that affect absorption in the intestine, the body not being able to use the vitamin, or an increase in the excretion of the vitamin from the body.
Substantial evidence means more than a mere scintilla. It means such relevant evidence as a reasonable mind might accept as adequate to support a conclusion.. Richardson v. Perales, 402 U.S. 389, 401 (1971).
Duhaime's Law Dictionary. New Evidence Definition: Evidence of matters that occurred subsequent to the order appealed from. A term used in the context of appeals to limit the acceptance of evidence not referred to during the hearing or trial of which the appeal is from. Distinguished from fresh evidence.