General cooking tips
Buy Local Food : See if you can find out where your food has gone before it gets to your plate. You may be suprised by the results. Often it will make financial sense for companies to transport food enourmous distances by planes, boats and lorries. This dosn't take the environmental cost into account (which of course is likely to lead to greatly increased economic costs in the long term).
Kitchen Tip : Even though they are like magnets for spills, keep stovetop reflectors clean. They will reflect heat better and save energy. If you need new ones, buy quality. The best on the market can save as much as 1/3 of the energy used with inferior reflectors.
Diet types
The Glycaemic Index Diet
The glycaemic index diet is based around the gi index, a chart showing types of food and a score representing the ease with which the glucose and energy of the food gets changed to sugar in your blood stream. The believe is that slow release food types (ie those foods with a low Glycaemic score), suppress your appetite and help you to take in fewer food without feeling you are missing out.
It's also especially beneficial for individuals with diabetes, as the low GI foods are beneficial in managing surges in blood glucose levels.