Eating a diet higher in Omega-6 fats results in better condition for our older Australians. A recent study says that omega-6 fats found in plants and nuts prevent cognitive decline in our older generations. Omega-6 fats full under the category of poly-unsaturated fats - the good fats. We need good fats in our diets; they are an important fuel source, says Dr Tamara Hunter on Channel 9.