Because it sucks being hungry and angry and moody and uncoordinated all the time. On my healthy 1800-calorie-a-day diet I once crashed my bike into a friends' b

Because it sucks being hungry and angry and moody and uncoordinated all the time. On my healthy 1800-calorie-a-day diet I once crashed my bike into a friends' bike in a roundabout because of a blood sugar crash that was leaving me shaking and with blurred vision. I was ravenous every morning at 10 am after my oatmeal at 8 (steel-cut, not instant!). Blood sugar fluctuations would lead me to divorce-inducing rage. And I still wasn't skinny. I was pushing "overweight" on the BMI scale despite biking 50 miles a week and weight training (Starting Strength). Switch to a lower-carb diet -- eggs & veggies for breakfast -- and now I'm serene and start feeling gradually hungry at some point, without the rage. Better digestion, too. And lost 10 lbs so fast I checked with a doctor to make sure I don't have cancer, as I have not changed my routine other than diet.