Omega-7 fatty acids are a class of unsaturated fatty acids in which the site of unsaturation (a bend in the chain) is seven carbon atoms from the end of the chain. The two most common omega-7 fatty acids in nature are palmitoleic acid and vaccenic (cow) acid. Sources include sea buckthorn, macadamia nuts and to a far lesser extent milk fat products.
Sea Buckthorn pulp oil contains 32-42% omega-7. This is twice the amount found in the calorie-dense macadamia nut.
Sea buckthorn, despite its name, is not an ocean plant. It grows in high-salt conditions both along the ocean shoreline and in deserts, from western Europe to Mongolia. Records of its use date back to ancient Greek times and has been a medicinal in ancient Chinese writings.. The berries are inedible unless they are "bletted," frozen to increase their sugar content, They are also a good source of vitamin C, (containing 15 times as much vitamin C as oranges) and healthy carotenoids.
Omega 7s increases insulin sensitivity, and HDL cholesterol as well as reducing CRP (inflammation). Palmitoleic acid elevates levels of the hormone cholecystokinin (CCK), which promotes satiety and helps with fat loss.
Omega-7 fats benefit skin and intestinal problems. Sea Buckthorn has been used for centuries to relieve gastric and duodenal ulcers and other gastrointestinal disorders. Too much omega-7 fatty acids accumulate in the oily sebum that lubricates the skin; they are broken down into the chemical 2-noneal, which causes the phenomenon known as "old people smell." Frequent washing and specially formulated cosmetics eliminate the smell.
One one might harvest their own sea buckthorn berries or even try to buy them on line, but it is far easier to buy a bottle of the oil or the capsules. One or two of the 450mg size before a meal will help with not only with weight loss, but lower lipids as well as a statin and improve skin and gut health. Macadamia nuts are easier to come by, but they are fattening!