The researchers found a total of 45% of flavored and unflavored supplements tested positive for rancidity, with 32% of flavored supplements testing positive and

The researchers found a total of 45% of flavored and unflavored supplements tested positive for rancidity, with 32% of flavored supplements testing positive and 13% of unflavored pills. The above math looks wonky to me but fits with the TLDR at the end of the piece: Both Frame and Hands suggest exercising caution with flavored fish oil supplements at this point due to the uncertainty of how the flavoring may affect their freshness and, thus, any potential health benefits.