NANP Board Practice Exam

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How do nutritionists classify taurine in infants and individuals with deficient B6, methionine, or cysteine?

Conditional essential amino acid
Non-essential amino acid
Protein synthesis regulator
Tricarboxylic acid cycle intermediate

The correct answer is: Conditional essential amino acid

Taurine is classified as a conditional essential amino acid in infants and individuals with deficient B6, methionine, or cysteine. This is because while taurine is not typically essential for adults, these individuals are unable to produce it in sufficient quantities on their own. This makes it essential for their dietary intake. The other options, such as non-essential amino acid, protein synthesis regulator, and tricarboxylic acid cycle intermediate, do not accurately describe the role of taurine in this particular context.