Wednesday, March 21, 2007

Yo-yo dieting
Yo-yo dieting is defined by alternating periods of feast and famine that the dieter deliberately undertakes. It is a particularly ineffective method of sustaining weight loss.
The human body responds to starvation by decreasing metabolism. When food is again available, it is stored immediately as fat. This survival mechanism, while a useful response to genuine food scarcity, leaves the yo-yo dieter feeling lethargic and fatigued.

Side effects
Dieting, especially extreme food-intake reduction and rapid weight loss, can have the following side effects:
·Prolonged hunger
·Depression
·Reduced sex drive
·Fatigue
·Irritability
·Fainting
·Sinus problems (especially post-nasal drip)
·Muscle loss
·Rashes
·Acidosis
·Bloodshot eyes
·Gallbladder disease