My experimentation with PPC is coming to a quick end, and now, after do
ing some research on 'oil filled caps' going rancid, believe this may be a regular problem with fish oils, <span style = 'background-color: #dae8f4'>flax</span> seed
oil, primrose, etc. Seems the literature claims
that oil caps can go bad rather quickly after being manufactured, and should be refrigerated at the very least. My confidence in their effectiveness and safety is diminishing.