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BTD Forums    Diet and Nutrition    Live Right 4 Your Type  ›  Saliva Test vs Lewis Test
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RonF
Thursday, December 6, 2007, 2:36am Report to Moderator Report to Moderator
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Can someone please help me regarding conflicting test results?

My saliva test came back Non secretor  but my Lewis results were a-b+ which indicate Secretor?

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Don
Thursday, December 6, 2007, 2:59am Report to Moderator Report to Moderator

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Sam Dan
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Where did you have the lewis test done?
Quoted from BTD FAQ Some people on other internet boards claim that blood testing for secretor status is superior to the saliva test. Is that true?
http://www.dadamo.com/errata/smartfaq.cgi?answer=1075206948
Dr. D'Adamo had this to say about differences in secretor testing: "Having done 5000 Lewis typing tests in the clinic over the last 15 years, and about 400 salivary inhibition studies, I can safely say that saliva testing is more accurate than blood. The reason being that the agglutinations that are used to determine Lewis types are very delicate (weak antibody reaction) and can easily be misinterpreted, unlike ABO which makes a big glop that you cannot miss (strong antibody). I've even seen conflicting results from two different MedPath labs, especially if the staff is not trained well enough." The subject is discussed in more depth in one of the Science Knowledge Base Entries.


FIFHI; ISTP;
Started BTD 3/2002, with 2 O- secretor teenage sons
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Lloyd
Thursday, December 6, 2007, 3:05am Report to Moderator Report to Moderator

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Sa Bon Nim
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Hi RonF,

Welcome.

As Don's post indicates, the saliva test is more accurate.

Why not visit the member center and choose an appropriate blood type avatar (I'd go non-secretor) so that others can respond to you better? While there, you may also add other personal information if you choose.

Lloyd
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Debra+
Thursday, December 6, 2007, 3:20am Report to Moderator Report to Moderator

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Kyosha Nim
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Hey RonF...welcome to the forum.  I would go with the secretor test...it is the most accurate.  Come sit down in the clubhouse...we have a seat aaaalllll warmed up for ya.

What blood type are  you?

Debra


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Debra+  -  Thursday, December 6, 2007, 3:20am
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comper
Sunday, December 23, 2007, 7:42pm Report to Moderator Report to Moderator

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does anybody know how accurate percentage-wise the saliva test is? I tested for a secretor while my mother tested for non-secretor.
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Don
Sunday, December 23, 2007, 7:57pm Report to Moderator Report to Moderator

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Sam Dan
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Quoted from BTD FAQ - Some people on other internet boards claim that blood testing for secretor status is superior to the saliva test. Is that true?
http://www.dadamo.com/errata/smartfaq.cgi?answer=1075206948
Dr. D'Adamo had this to say about differences in secretor testing: "Having done 5000 Lewis typing tests in the clinic over the last 15 years, and about 400 salivary inhibition studies, I can safely say that saliva testing is more accurate than blood. The reason being that the agglutinations that are used to determine Lewis types are very delicate (weak antibody reaction) and can easily be misinterpreted, unlike ABO which makes a big glop that you cannot miss (strong antibody). I've even seen conflicting results from two different MedPath labs, especially if the staff is not trained well enough." The subject is discussed in more depth in one of the Science Knowledge Base Entries.

DETERMINING SECRETOR STATUS (blood bank procedure)


FIFHI; ISTP;
Started BTD 3/2002, with 2 O- secretor teenage sons
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comper
Sunday, December 23, 2007, 8:02pm Report to Moderator Report to Moderator

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what if my father tests for non-secretor like my mother, does that mean perhaps my test was wrong, or do my parents potentially don't matter?
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Don
Sunday, December 23, 2007, 8:12pm Report to Moderator Report to Moderator

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Sam Dan
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If your mother and father are both non-secretors, then you have to be a non-secretor.


FIFHI; ISTP;
Started BTD 3/2002, with 2 O- secretor teenage sons
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Sunday, December 23, 2007, 8:15pm Report to Moderator Report to Moderator

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ok, is one parent more dominant in determining the child? (i still don't know what my father is)
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Don
Sunday, December 23, 2007, 8:38pm Report to Moderator Report to Moderator

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Sam Dan
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Assuming your mother is really a non-secretor and you are a secretor, then that means your father has to be a secretor in order to pass on a secretor gene to you.


FIFHI; ISTP;
Started BTD 3/2002, with 2 O- secretor teenage sons
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Sunday, December 23, 2007, 9:16pm Report to Moderator Report to Moderator

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ok, thanks for this info.
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Don
Sunday, December 23, 2007, 10:17pm Report to Moderator Report to Moderator

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Sam Dan
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It also means that you have one secretor gene and one non-secretor gene, which is something to keep in mind if and when you have children.


FIFHI; ISTP;
Started BTD 3/2002, with 2 O- secretor teenage sons
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Jill N
Saturday, December 29, 2007, 2:02am Report to Moderator Report to Moderator

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Quoted from Don
If your mother and father are both non-secretors, then you have to be a non-secretor.


I haven't done my secretor test yet, but based on this I guess there really is no reason to do it.  Both of my parents have done theirs and they are both non-secretors.  Do any of the books say this or does this come from another source?  Thanks!



Jill

"Be the change you want to see in the world." ~ Mahatma Gandhi




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Lloyd
Saturday, December 29, 2007, 2:10am Report to Moderator Report to Moderator

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It's basic genetics. Any number of textbooks explain it, just not for that specific gene. Non-secretor is recessive, you can only get non-secretor genes. Of course, if you might have been adopted or switched in the hospital or something.....
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Jill N
Saturday, December 29, 2007, 2:13am Report to Moderator Report to Moderator

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Quoted from Lloyd
Of course, if you might have been adopted or switched in the hospital or something.....


  Very unlikely.  I can certainly see both of them when I look in the mirror.  Thanks!!



Jill

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