ISSA Quality Control & Process Improvement 2 — Questions and Answers
Question 1: Which federal agency is primarily responsible for regulating dietary supplement manufacturing under the Dietary Supplement Health and Education Act (DSHEA)?
- USDA
- FDA (Correct answer)
- FTC
- CDC
Correct answer: FDA
The FDA oversees dietary supplement regulation and enforces Current Good Manufacturing Practice (cGMP) regulations under DSHEA.
Question 2: In a Hazard Analysis and Critical Control Points (HACCP) system, what is the purpose of establishing critical limits?
- To identify which employees are responsible for each step
- To set the maximum or minimum values that control a hazard at a CCP (Correct answer)
- To document all non-critical process steps
- To determine the frequency of consumer complaints
Correct answer: To set the maximum or minimum values that control a hazard at a CCP
Critical limits define the boundary between safe and unsafe conditions at each Critical Control Point.
Question 3: A nutrition supplement company discovers a batch of protein powder has moisture content exceeding specifications. What quality control action should be taken first?
- Immediately destroy the batch
- Place the batch on quarantine hold pending further testing (Correct answer)
- Release the batch since moisture affects only texture
- Reformulate the product and release immediately
Correct answer: Place the batch on quarantine hold pending further testing
Quarantining the affected batch prevents potentially non-conforming product from reaching consumers while investigation occurs.
Question 4: Which statistical tool is used to identify the most frequent causes of defects in a quality control process, following the 80/20 principle?
- Control chart
- Fishbone diagram
- Pareto chart (Correct answer)
- Scatter plot
Correct answer: Pareto chart
A Pareto chart ranks causes by frequency, highlighting the vital few defects that account for the majority of problems.
Question 5: When evaluating a supplement supplier, which document confirms that raw materials meet specified quality standards before use in manufacturing?
- Bill of lading
- Certificate of Analysis (CoA) (Correct answer)
- Purchase order
- Material Safety Data Sheet
Correct answer: Certificate of Analysis (CoA)
A Certificate of Analysis provides test results confirming raw material identity, purity, and potency against established specifications.
Question 6: In the context of cGMP for dietary supplements, what does 'in-process testing' refer to?
- Testing finished products before shipment
- Testing raw materials upon receipt
- Quality checks performed at defined stages during manufacturing (Correct answer)
- Consumer satisfaction surveys after product use
Correct answer: Quality checks performed at defined stages during manufacturing
In-process testing involves sampling and testing at critical stages during production to detect deviations before the batch is completed.
Question 7: A nutritionist reviewing a client's supplement label notices the serving size listed does not match the actual scoop provided. This discrepancy represents which type of quality issue?
- Labeling non-conformance (Correct answer)
- Microbiological contamination
- Heavy metal exceedance
- Allergen cross-contact
Correct answer: Labeling non-conformance
A mismatch between labeled serving size and the physical measuring tool constitutes a labeling non-conformance under FDA regulations.
ISSA Quality Control & Process Improvement 2
Which federal agency is primarily responsible for regulating dietary supplement manufacturing under the Dietary Supplement Health and Education Act (DSHEA)?