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).
What Is Admissible Evidence? Admissible evidence is any document, testimony, or tangible evidence used in a court of law. Evidence is typically introduced to a judge or a jury to prove a point or element in a case. 1  Criminal Law: In criminal law, evidence is used to prove a defendant's guilt beyond a reasonable doubt.