A recent study titled ”Polar lipid profile of Saccharina latissima, a functional food from the sea” was just published in the journal, Algal Research.
Saccharina latissima is a brown alga (kelp). It is known by the common name sugar kelp, and also sea belt or Devil's apron, due to its shape. Sugar kelp grows relatively fast and large (about 5 meters, or 16 feet long), and its ability to be grown on a long line also makes it an appealing species for near shore cultivation. Indeed sugar kelp farms have been on the rise within the USA.
The researchers examined all the lipids within sugar kelp important for either nutrition or other commercial use. They reported high levels of PUFAs (polyunsaturated fatty acids), such as the highly prized omega-3s, EPA and DHA that are typically sourced from fish oils. Western diets present high levels of omega-6 PUFAs, with a nutritional ratio omega-6/omega-3 greater than 2, which has been associated with increased risk of mortality due to cancer, cardiovascular, inflammatory and autoimmune diseases. However, marine macroalgae, such as S. latissima, present a much higher prevalence of omega-3 PUFAs than land vegetables. A diet rich in omega-3 PUFAs can reduce Omega-6/Omega-3 ratio, being nutritionally more healthful and contributing to the prevention of chronic diseases