Even though the FDA says these supplements should be the same every time, the red yeast rice pills you buy at stores like Walmart or CVS can have wildly different amounts of the active ingredient—so sometimes they might work, sometimes they might not.

Assessment Explanation

The claim describes a real-world observation about product variability, which is supported by multiple independent studies and FDA warning letters documenting inconsistent monacolin K levels in commercial red yeast rice supplements. The use of 'exhibit' is appropriate because it reflects observed variability without implying causation. The claim is not overstated—it aligns with documented regulatory findings and analytical testing data from academic and government labs. A definitive verb like 'always' or 'never' would be too strong, but 'exhibit' correctly conveys a pattern of inconsistency.