Protein is one of the most important and expensive components of an athletes overall diet program. This macronutrient helps add calories to an athlete’s diet that will allow for enhanced growth and repair of hard working muscles. Protein is also helpful for many other bodily functions like growth of skin, hair and organs.
Depending on which authority you talk to an athlete can be required to eat anywhere from 1 gram to 2.5 grams of protein per pound of body weight. For a 200 lb. athlete that could add up to 200-450 grams of daily protein.
With this fact in mind athletes today are looking for economical ways to add these protein grams to their diet without breaking their bank account. Some of the most economical and quality protein sources are cottage cheese, boneless skinless chicken breast, eggs and egg whites.
The most economical and highly effective source of protein grams is protein powder.
Cost of Protein per Gram Chart
|
2% Milkfat Cottage Cheese
|
$0.03436 |
| Boneless Skinless Chicken Breast |
$0.04000 |
| Eggs |
$0.02315 |
| Egg Whites |
$0.03472 |
| All The Whey (WPI) 50 Lb. Bag |
$0.01998 |
Red meats and fish can cost almost 2-3 times as much as these protein sources mentioned above.
The example above of the cost of whey protein isolate is in the form of a 50 lb. bag. This amount creates a good price break. However, most people purchase smaller quantities like 2-10 lbs. at a time. When purchasing in these smaller quantities the price can increase dramatically.
Many manufacturers charge $8.00-13.00 per lb. for whey protein isolate. That’s anywhere between $.02-.032 per gram.
Even though these powders are very effective and economical there are big differences between them. It is important to know the difference between them in order to choose the right ones for the purpose you need.
Whey Protein Isolate (WPI) vs. Whey Protein Concentrate (WPC)
Whey isolate protein and whey concentrate protein or both forms of whey protein. Whey protein is considered a “fast acting” protein because it starts to get into your muscles in as little as 30 minutes and continues feeding them for up to 3 to 4 hours. Whey concentrate protein will contain between 34% up to about 82% protein, the rest mainly being sugar from lactose and fat.
Whey concentrate is what is sold in Costco and other large chain stores. These large bags of protein come with a cheap price but the quality and actual amount of protein you get is not that of whey isolate.
Whey isolate is a much better form of whey protein, in that it contains 90% or more protein content and is virtually free of fat and carbohydrates. You want to make sure your whey protein isolate has a typical protein content of 93% or more. 5% of the remaining 7% is moisture with the remaining 2% being a combination of trace amounts of sugar, fat, vitamins and minerals.
These protein sources are best used in post workout shakes.
Here is a direct quote from a retailer on the percentage of the whey protein concentrate they are selling.
They had a great price but at 50% protein you are only receiving half the protein grams of whey protein isolate. This is something you have to really look out for. Many manufacturers do not disclose how much true protein or quality is in their formulas.
“Good morning Alex and thanks for the e-mail, we source this blend from another leading manufacturer, but while we do not have the exact percentages, we are able to tell from the nutritional and amino acid profiles that the material is over 50% Whey Protein Concentrate as the leading ingredient in the mix. Thanks again and please feel free to reach us with any additional questions or requests.”
What to Look for in a Whey Protein Isolate
When choosing a whey isolate protein, look for one that is not denatured, meaning the protein chains are still intact and have not been broken down. Then simply determine how much protein you are actually purchasing. To do this, just look at the nutritional facts label and you should see how many servings are in the container. Take the number of servings in the container and multiply by the amount of protein per serving. This will give you the total amount of protein you are purchasing.
Next look at how many calories are in the container. Whey protein isolate contains 4 calories per gram of protein. So, if you are buying something with 26 grams of protein per serving, you should only have about 104 calories per serving. If the labels says there are 130 calories, the additional calories are coming from something other than the whey isolate and you want to keep these to a minimum, especially if you are trying to stay or get lean.
What is Whey Protein
Whey protein is the name of globular proteins that can be isolated from whey. It is typically a mixture of globinstagers beta-lacto globulin (~65%), alpha-lactalbumin (~25%), and serum albumin (~8%), which are soluble in their native culture forms, independent of pH. Whey has the highest Biological Value (BV) of any known protein. Whey protein has an even higher bioavailability than egg white protein (BV = 98), which is considered the “gold standard” of protein, and has a bioavailability rating of 100. Bioavailability refers to how efficiently a substance will be digested and absorbed through the villi in the small intestine into the blood stream while maintaining its original form. Because of this high bio-availability, amino acids from whey protein are thought to enter the blood stream faster than other protein sources.