Perhaps the most popular nutritional supplement EVER is whey protein. Heck, you can even buy some of the worst, cheapest
whey protein around conveniently at your local Wal-Mart. Now that's when you KNOW it's popular.
But here's the truth: Whey protein, even the "high quality" stuff that you'd pay an arm and a leg to obtain from your local Vitamin Shoppe or GNC, could very likely be stalling your fat loss progress and, even WORSE, causing you to GAIN weight.
And if that wasn't enough, here are the absolute WORST times to consume whey protein:
1. During the day
2. In the evening
Scratching your head? Don't: you understood it perfectly. Whey protein simply isn't a great protein to consume at any time of day, and for specific reasons.
1. Whey Protein Absorption - A review on the rate of protein absorption published in 2006 in the International Journal of Sport Nutrition and Exercise Metabolism reported that whey protein isolate absorbs at a rate of about 8g/hour. This is in large part due to the fact that whey is not broken down into small enough peptides by our body's natural enzymes in time to be absorbed.
Couple that with the fact that the window of opportunity for whey protein to be absorbed is 1.5 hours, your body at maximum will be able to absorb 12 grams of whey protein from a single serving.
Kind of makes those 40g whey protein shakes seem foolish, doesn't it? Well, that's because they are.
Simply put, whey protein passes through the system far too rapidly to be adequately absorbed, leaving the majority of your protein shake wasted...literally.
2. Insulin Release Associated With Whey - Which of the two items below cause a greater spike in insulin?