A few months ago I posted on the benefits of krill oil as an anti inflammatory agent. (links here and here).
One of the problems MD and I encountered using krill oil from one supplier was that the capsules seemed to leak and got stuck together when we kept them in the refrigerator. When I asked the supplier of the krill oil we had, he replied that the phospholipid portion of the krill oil was causing the problem and that phospholipid should never be refrigerated. I’m not a lipid chemist, but somehow that just didn’t ring true with me. I figured that whatever it was it had to be a function of the krill oil itself because all krill oil comes from one source: Neptune Technologies.
Turns out that that is not necessarily the case.
We contacted the scientific people at Neptune Technologies and asked them the question. Their answer:
It’s possible to keep the softgels in the refrigerator at 4 degrees Celsius but due to the humidity, they might get stickier especially since we don’t recommend the use of desiccants in the bottles. Also, you might see a difference in the look of the oil in the softgel because the phospholipids will have a tendency of separating from the omega3’s which would change the aspect and look of the oil. You might notice white dots, or other strange things happening. It doesn’t mean that the softgel is not good anymore; it only means that the phospholipids started separating from the omega3’s. Finally, keeping them in the refrigerator should not make the smell worse; it should actually reduce the fishy smell.
So, the problem is the humidity, which I guess is higher inside a refrigerator and seeps through the porous plastic bottle and affects the softgels. We’ve tried the ones we have on our website in the fridge and they don’t get nearly so sticky. I know they originated from the same place–Neptune Technologies–as the ones we used before, so it couldn’t have been the softgels themselves, it had to have been that the plastic bottle from the other supplier was more porous.
I’m going to put some in a glass bottle and try it in the refrigerator to see what happens. I’ll report as soon as I have the data in hand.
Until then, rest easy knowing that your krill oil is okay even if it the softgels get a little sticky.
I can continue to report that my golf game is painless and I haven’t used an NSAID since I started the krill oil/fish oil/circumen regiment.