Crash diets are definitely not the way to lose weight. Just think about it - you spend years and years without much physical exercise and suddenly, out of the blue, you take up jogging, aerobics and put every form of pressure in your body, along with a stingy diet. Obviously, your body will find it hard to cope with the sudden changes and resist. This is why people are normally advised against taking up crash diets. They don't work for a large number of people, and they deprive the body off all types of nutrients and other forms of vitamins, minerals.