Do you guys really fast for weight loss. VERY BAD IDEA! I have caused myself terrible metabolic and digestive damage through fasting. Yeah, I lost weight, but it was mostly lean body weight. There are simpler, easier, healthier and more effective ways to lose weight and I know them all. Fasting might be ok periodically for short periods of time, especially juice fasting, maybe for a day or two, but you can REALLY do yourself harm. I have.