'The Fasting and the Furious'

There is one 'weight loss method' that makes me furious, and that is 'fasting'. I'm sure everyone knows what fasting is, but just in case some of you don't, its simply starving your body of nutrients. A common form of fasting is known as 'IF', or 'intermittent fasting'. This is where you will go a set amount of hours a day without nutrients. This can be used in different ways - 16-20 hours a day, every other day, every three days, twice a week, once a week, once every two weeks or once every three weeks.
IF has been shown to lose fat, but it is not healthy or sustainable. As I always say, If you can't do it for either a very long time, or forever, then there is simply no point in doing it in the first place.
A major negative of fasting, is the loss of muscle mass. When you starve your body, most people think you will shed fat, but you also shed muscle mass, which is not healthy, and definitely not the intention. Muscle is what gives your body shape, so if you lose that, you also lose your shape. After all, i'm sure everyone wants a slim body with great shape, so make sure you don't starve your body.
Your body is at its best when it is fully fueled with the correct nutrients. Its similar to a racing car - if the car has enough fuel, engine oil, coolant, gearbox oil, tire pressures and so on, its going to perform at its best. Take away any one of those things, or even reduce them, the car will not be able to perform at its best. So if you don't keep your body fueled correctly and regularly, your performance will suffer. A lot of people moan about their jobs, but imagine if you are also 'under fueled' because of your IF diet, you will literally hate being at work. Your concentration will suffer too, which will make being at work even harder, but on a serious note - if your concentration and alertness are 'low', driving will not be safe!
If you are looking to build muscle, then IF will not help, as it will play havoc with your hormones (which are used to build muscle). Also, its never a good idea to have messed up hormones (girls will know!)
Intermittent fasting, to me, seems like another 'fad diet', that will maybe work in the short term. But there are downsides to it, and the fact that you can't do it long term, or forever, makes it pointless to start.