Some even claim that low fat diets alone are enough to prompt weight loss. Because fat is a concentrated form of calories, people who eat less fat are able to consume more food overall, and still maintain their current weight. Maintaining a low fat diet is can also help prevent obesity, which can lead to high blood pressure, hypertension, adult onset diabetes, and heart disease. Low fat diets help to prevent the occurrence of obesity, and the possible occurrence of a number of negative side affects that are associated with it by limiting the fat that the body consumes and consequently the fat the body can store. There are different types of fat that have different effects on the body, but eating less fat overall is the most important concern.
Exercise is also an integral part of many commercial weight loss programs.
It is often added after the pattern of eating is established so that the client is able to become comfortable with their new eating pattern first. Regular weekly exercise is generally what programs support, with varying degrees of intensity and longevity. Some programs suggest 15 to 20 minutes of cardiovascular fitness 3 to 4 times a week, and others suggest 30 to 60 minutes of cardiovascular fitness 4 or more times a week. Most of the programs also include warming up and stretching as part of the exercise routine. Varying they type of exercise is suggested to prevent boredom, and to work different parts of the body.