Below is a great article posted by Dr. Dave Popkin discussing the importance of quality assurance of supplements in our current nutritional wellness market. The article stresses some of common problems found in cheaper "buy in bulk" fish oil supplements. One nutritional analysis that should also help sum up the current problems associated with these bargain brand claims is stated below:
"The mean vitamin D content from 10 different commercially available brands was only 33% of what the label claimed, with the actual content ranging from less than 1% to 82% of the advertised level."
Reference: June 7, 2010. http://www.medpagetoday.com/MeetingCoverage/CMSC-ACTRIMS/20522
By Dr. Dave Popkin on April 5th, 2011
What you need to know isn’t on the label. Purity and quality of fish oil supplements (omega-3s, EPA, DHA) is a growing public concern. High quality supplements have the potential to offer wonderful health support. But lesser quality products may contain potentially harmful levels of compounds that negatively impact health—or not work or taste as well as they should.
- Contamination. Some fish oil products may contain excessive levels of harmful toxins.
- Country of origin. Some products are manufactured in countries with less consistent quality standards.
- Rancidity. Fish oil is unstable and can quickly become spoiled and oxidized, which can be bad for your health.
- Low potency. Some products may contain lower levels of omega-3s than promised on labels.
- Fishy aftertaste. Fish oil supplements don’t have to taste (or smell) like fish to work well.