re: Bieber's actions blamed on steroid use (Clenbuterol)

Data has been sort of odd depending on the selected outcome. Some claim decreases in blood sugar due to increased insulin response. I recall one study that showed a decrease in postprandial blood glucose when consumed with a high carb meal. However, the glucose levels spiked after a couple hours. Postprandial blood glucose is important, especially in diabetics. I would be concerned with long term insulin resistance and high fasting glucose in disease development though.