The Peptide Test for Casein and Gluten Peptides
last updated 8.25.05

The validity of the peptide test isn't very good in helping you determine what to do, whether you use enzymes or not. You really might want to save your money on this one.

At first years ago parents were told to spend money on this test to see how those alleged peptides were doing and how many might be getting at the brain. But the whole opiate theory still remains just a theory...it still hasn't been proven to be true. Since then it has been very clear to many that the tests really don't tell you much of anything useful. Other things in your body (blood breakdown, yeast by-products) can generate peptides that register on the test. If you get a high peptide reading, it might be because you have a yeast overgrowth and no problem with casein and gluten at all.

Parents constantly report over the years that they would get a high peptide reading so scurry right on the GFCF diet 100% strict for over a year or more. Then they would run the test again after a year and get an even higher peptide reading than before. Other parents would say their tests results came back normal but they took out casein and gluten foods and their child did very well when supposedly he shouldn't have improved per the test results. The take home message is that whatever the test says, it isn't anything you can translate into a meaningful course of action or base a decision on.

I wrote one of the lead fellows who studied the peptide issue and came up with these tests, some time ago and asked him what is the percentage of typical people with healthy guts getting 'high' or elevated peptide readings from this test. He said about 25%. That is 1 in 4 typical people.

If you are interested in trying diet, just try a diet. If you are interested in enzymes or other gut healing measure, just try them. If you want to run a test for giggles and get a piece of paper with random numbers on it, do a peptide test. Other tests might be much more worth your time or money.

Then they would run the test again after a year and get an even higher peptide reading than before. Other parents would say their tests results came back normal but they took out casein and gluten foods and their child did very well when supposedly he shouldn't have improved per the test results. The take home message is that whatever the test says, it isn't anything you can translate into a meaningful course of action or base a decision on.

 

 

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