Kiwi scientists say laser technology could help quality-test fish oil supplements - recently revealed to lack much of the contents their labels claim in many cases. The researchers used 11 brands of PUFA oil capsules commonly available on New Zealand shelves, which included five fish oil and six omega-3 concentrate brands. "Some studies have associated oxidised fish oil with negative health outcomes." About one-quarter were vitamin D deficient at the start of the trial - registering vitamin D levels of less than 50 nanomoles per litre via blood tests. "Ongoing research also will determine within the next three to four years whether vitamin D supplements prevent other diseases."

Source: New Zealand Herald April 23, 2017 03:45 UTC