If you are thinking of buying a Tefal Actifry or the Philips Air Fryer, you will either be thinking about eating more healthily or about losing weight. Where these machines come into their own is because they can make a very real difference to the nutritional values of many foods. There is no doubt that these machines are a very useful piece of kitchen equipment, read on to find out why. Both these machines sit on the worktop and can be stored away when not in use (although they do take up quite a bit of cupboard space). The primary reason most people buy one is because you can cook…