This article is about weight loss. For the band, see Crashdiet.
A crash diet is a diet which is extreme in its nutritional deprivations, typically severely restricting calorie intake. It is meant to achieve rapid weight loss and differs from outright starvation only slightly. They are not meant to last for long periods of time, at most a few weeks.
Effects
Crash diets are typically unhealthy and are rarely, if ever, recommended by doctors or dietitians, as they can lead to malnutrition.
After a person discontinues a crash diet, the "yo-yo effect" is often seen. This causes a person to eat far more than normal, causing he or she to regain not only the weight lost from the diet, but additional weight too.
