Originally posted by eschelon
Here is my expert advice on why you feel tired after consuming carbohydrates:
After you consume carbs, your body releases a hormone called Seratonen which causes your body to become lethargic.
Seratonin is the culprit, usually. In addition, eating transfers blood from the brain to the stomach, which can contribute to sleepiness. This is normal and natural. I always get tired after lunch, so I try to eat lighter, more frequent meals and keep on my feet, which keeps my blood circulating.
As for diets, studies have shown that no matter how effective a diet is in helping people lose weight, very few people ever keep that weight off. This is because they go right back to their old eating habits after losing the weight, and they gain it right back, plus some extra pounds.
To keep weight off, your lifestyle must be something you can continue comfortably the rest of your life. Exercise and sensible diet (not extremes) is the best way to do this.