Just an idea for anyone who like me doesn't get enough natural fiber in their diet, and who drink straight whey+water for a protein shake. Started adding a heaping teaspoon of inulin fiber to the drink. Can't taste any difference, and get a free fiber boost. Also, helps the "meal" stick around longer, which is helpful if you use whey protein for meals other than post workout where you aren' necessarily trying to "flood" your system with protein. Note - add this kind of fiber supplement gradually. Going from zero to one heaping teaspoon takes several days of some slight bloating and gas to subside, then it's back to normal. I'm going to up it to 2 heaping teaspoons soon. Be sure to drink plenty of water.