Should I drink protein shake before or after a weight workout?
Before: It’s entirely possible to suffer a negative nitrogen balance while in the midst of an intense workout. What that means for you is that your body goes from anabolic (positive nitrogen balance [+N]) to catabolic (negative nitrogen balance). Casein is the preferred source for slower delivery of protein, but there are only a few casein proteins on the market enriched with glutamine (I’ll get to that-promise). If you’re able to supplement protein within twenty minutes of starting your training, whey is fine. Whey protein has the highest biological value of any protein for humans. Now to the glutamine part. Two grams of glutamine taken orally has been shown in numerous studies on humans to increase growth factors (primarily IGF-1 [insulinlike growth factor]). Designer Whey from Next Proteins is engineered to be three times better than regular whey (and proven in three university studies) and enriched with 2.8 grams of glutamine per serving. Now, let’s say for some reason you can’t ad
