Krill oil provides a number of health benefits and is a great alternative to eating fish. Yet are there any risks involved with taking a daily krill oil supplement? And how does it compare to fish oil when it comes to safety? Let’s take a closer look at a few key areas of consideration.
Rancidity & Stability
Natural oxidation can affect polyunsaturated fatty acids (PUFAs), like the omega-3 found in both fish oil and krill oil. PUFAs are highly susceptible to oxidation, or spoiling. When oxidized, they can quickly turn rancid, which can be detected by a foul odor or taste.
Oxidation begins from the moment fish or krill are caught. Over time, exposure to oxygen, heat and light moves the process along and results in rancidity. As this occurs, the same fatty acids that once delivered health benefits may instead have negative effects on your health.
Like any perishable food substance, both fish oil and krill oil will maintain their freshness better when properly stored. Some fish oils are enriched with vitamin E as an antioxidant to improve their stability. NKO’s krill oil, however, does not contain such additives. Instead, the oil extracted from Antarctic krill naturally contains the super antioxidant astaxanthin, which act as a natural antioxidant and extends the oil’s shelf life.
Toxins & Contaminants
Contamination is spread through the food chain, as larger predatory fish consume smaller prey as food sources. Fish in heavily commercialized waters can accumulate levels of mercury, heavy metals and other toxins that are dangerous for human consumption. Organic chemicals, such as PCBs, dioxins and DDT, can also be absorbed through fish skin and stored in their fatty tissues. Over time, these contaminants can lead to a number of health risks for humans.
Krill is located at the bottom of the food chain and is collected from the clean waters of the Antarctic Ocean. Krill survives on algae found deep below the sea ice, far from the industrialized fishing areas where many fish reside. Given its biome and lifespan, algae does not accumulate high levels of toxins. In turn, contaminants are less likely to build up in krill.
Krill oil supplements should be purchased from a quality manufacturer who abides by industry’s strict regulatory standards. NKO has gained approvals from several regulatory authorities around the world, including the Food and Drug Administrate (FDA) in the United States and Health Canada. Click here to learn more about NKO’s patents, approvals and commitment to quality.