Print Topic - Archive

BTD Forums  /  Live Right 4 Your Type  /  Determining Secretor Status (3rd Method)
Posted by: 14445 (Guest), Wednesday, October 5, 2011, 10:09am
The other day I couldn't help but wonder if having discovered your GenoType using the SWAMI software, it is acceptable to return to the advanced table in the GenoType Diet book and work backwards to determine your secretor status??  :D  :D I haven't used the test kit to send a saliva sample to be tested because I'm not quite convinced yet as to how accurate the result would be; given the time it would spend in transit (sending the sample from New Zealand to the United States)...  ??)  ??)
Posted by: Patty H, Wednesday, October 5, 2011, 10:31am; Reply: 1
If your health insurance covers blood typing, ask your doctor to order Lewis phenotyping if you are worried about the saliva testing.

While I live in the US, my Lewis phenotyping test confirmed my saliva testing.
Posted by: ruthiegirl, Wednesday, October 5, 2011, 2:44pm; Reply: 2
Nice theory, but I don't think it would work. It's probably about as effective as saying "DD2 had a dramatic improvement when we replaced wheat with spelt, but DD1 didn't, so DD2 is probably a secretor and DD1 is probably a non-secretor." Reading through the GTD book, that discrepency in spelt tolerance can be explained just as well by assuming DD1 is a Gatherer and DD2 is an Explorer, regardless of either of their secretor statuses.

The flaw in your reasoning is that SWAMI-determined genotype can vary from the genotype determined by the advanced calculator in the back of the book. People have even had their SWAMI genotype change when they altered some of the input (say, a B nomad becomming a B gatherer when she added in  blood sugar problems, even though her measurements didn't change and the book results wouldn't change.)

You can set up SWAMI to "float" secretor status, and then the software will made an educated guess about your secretor status based on the data entered. I had my SWAMI re-run the same day I filled my saliva sample, and Andrea set it to "float" secretor status. SWAMI  guessed right- it put me down as a nonnie, and then the lab result 2 weeks later confirmed it. Had I turned out to be a secretor, I would have called or emailed Andrea with the results and she would have emailed me the new SWAMI.
Posted by: ABJoe, Wednesday, October 5, 2011, 3:19pm; Reply: 3
Very good explanation, Ruthie...  

I agree that there really isn't a replacement for testing.
Posted by: C_Sharp, Wednesday, October 5, 2011, 3:36pm; Reply: 4
Quoted from ruthiegirl

You can set up SWAMI to "float" secretor status, and then the software will made an educated guess about your secretor status based on the data entered.


This is a feature available in SWAMI GenoType used by practitioners. This is not possible in the the current release of SWAMI Xpress used by the general public. I do not know whether it will be included in SWAMI Xpress 2.

Posted by: ruthiegirl, Wednesday, October 5, 2011, 3:58pm; Reply: 5
But you do have the option of running SWAMI twice, right? Once as a secretor and once as a non-secretor?
Posted by: C_Sharp, Wednesday, October 5, 2011, 7:17pm; Reply: 6
Quoted from ruthiegirl
But you do have the option of running SWAMI twice, right? Once as a secretor and once as a non-secretor?


Yes. You also have the option of not specifying a secretor in SWAMI Xpress.
I have not looked at this issue recently, but a couple of years ago (when SWAMI Xpress first came out), and it appeared to me not specifying gave me the same results as specifying secretor.  But this result might be related to other settings in my test case.

Posted by: Lola, Wednesday, October 5, 2011, 9:12pm; Reply: 7
and swami express runs without having to determine secretor status, which is another
bonus....... ;)
Posted by: Mototime, Thursday, October 6, 2011, 1:59am; Reply: 8
I'm not to confident in the accuracy of the secreter test. It seems like almost everyone who takes the test is a non-secreter. All four members of my family who took it came back as non-secreters. If only 15% of the population are non-secreters then something seems off with the test. I wonder if anyone has taken the blood test and gotten a diferent result. It is quite a difference on a swami if you are a secreter or not and I wiuld think that if you put down that you don't know then the program would assume you were a secreter since the odds would sugest that. Any thoughts?
Posted by: C_Sharp, Thursday, October 6, 2011, 2:08am; Reply: 9
Non secretors is an inherited genetic trait.

If both you and your spouse are nonsecretors, all your children will be.

I had both a blood test and a genetic test to determine my secretor status.

I also have followed both a secretor and and a nonsecretor A diet. The nonsecretor diet works and the secretor one only sort of works. I definitely need to follow the nonsecretor diet to get the desired results.

Look at the avatars on the left of all posts. These will show what people tested as. There are quite a few people that tested as secretors (particularly in threads that do not have to do with secretor status). (some people have not tested or have not chosen to share the results).
Posted by: C_Sharp, Thursday, October 6, 2011, 2:19am; Reply: 10
Welcome Mototime:

Good to see you on the forums!

You could help people help you on the forums, if you would select an avatar indicating your blood type and secretor status.

You can do that in the member center:

http://www.dadamo.com/cgi-bin/Blah/Blah.pl?v-memberpanel/a-profile/s-avatar/


Notes on how to:

http://www.dadamo.com/cgi-bin/Blah/Blah.pl?b-ref/m-1219018887/
Posted by: Patty H, Thursday, October 6, 2011, 2:31am; Reply: 11
I tested first with the saliva test and then again with a blood test run by the American Red Cross, when they were testing for a rare blood antigen.  My blood test confirmed my saliva test.
Posted by: KimonoKat, Thursday, October 6, 2011, 2:57am; Reply: 12
Quoted from Mototime
I'm not to confident in the accuracy of the secreter test. It seems like almost everyone who takes the test is a non-secreter. All four members of my family who took it came back as non-secreters. If only 15% of the population are non-secreters then something seems off with the test. I wonder if anyone has taken the blood test and gotten a diferent result. It is quite a difference on a swami if you are a secreter or not and I wiuld think that if you put down that you don't know then the program would assume you were a secreter since the odds would sugest that. Any thoughts?


I believe, years ago (when secretor status test kits first became available to the general public back in 2001) Dr. D said something to the effect that the secretor saliva test is superior to a blood test.

I was tested in 2001 and I tested as secretor.
Posted by: ABJoe, Thursday, October 6, 2011, 3:20am; Reply: 13
Quoted from Mototime
It seems like almost everyone who takes the test is a non-secreter. All four members of my family who took it came back as non-secreters. If only 15% of the population are non-secreters then something seems off with the test...  Any thoughts?

As already pointed out, if two spouses are Nonnies, all of their children are nonnies.

It is also probable that more Nonnies get tested because they are having more problems.  I was having major problems, so I took the test.  It turned out that I am a secretor, but I only got the test because I was concerned...


Posted by: Lola, Thursday, October 6, 2011, 4:03am; Reply: 14
Shaun,
are you doing the testing through your distributor?
Posted by: 14445 (Guest), Thursday, October 6, 2011, 7:00am; Reply: 15
Yes I will be I think, Lola. I can now see that secretor status can't be deduced by treating SWAMI and the GenoType tables equal measures. As C_sharp mentioned, I also changed my SWAMI secretor status from nothing to secretor and the food tables were the same with "secretor" as they were when I'd left it blank (but changed when I went from blank to non-secretor). At first I thought this would've meant I was a secretor, but then thought perhaps SWAMI assumes all users who haven't entered their status as "secretors"?
Posted by: Lola, Thursday, October 6, 2011, 7:23am; Reply: 16
given your variables, swami programmed by Dr D himself, figures out if it is dealing with a nonnie or a secretor......it is complicated and complex...... :)
Posted by: 14445 (Guest), Thursday, October 6, 2011, 8:06am; Reply: 17
Oh cool, so SWAMI initially gathered from all my other information that I was most likely a secretor, which is why it didn't change much at all when I chucked "secretor" into the mix?  :)
Posted by: Sulis, Thursday, October 6, 2011, 9:15am; Reply: 18
Quoted Text
I tested first with the saliva test and then again with a blood test run by the American Red Cross, when they were testing for a rare blood antigen.  My blood test confirmed my saliva test.




I've just sent my saliva sample off to the US (I bought the kit from the AUS/NZ distributor) and I've decided to donate blood for the first time ever this month so I will ask the Red Cross here if they do Lewis phenotyping. It will be interesting to see what's more accurate :)
Posted by: AKArtlover, Thursday, October 6, 2011, 2:09pm; Reply: 19
Quoted Text
If you've had your genotype analysis done by 23 and Me, and are a member, you can look up your secretor status on the "Raw Data" page!!

The gene is FUT2.
The SNP is rs601338.
The presence of at least one "G" in your genotype indicates you are a secretor.
If your genotype is "AA," you are a non-secretor.

This was a BIG win for me, I've wondered for a long time!

Hope this helps someone!
wrkinprogress

Just putting this here for reference.
Posted by: C_Sharp, Thursday, October 6, 2011, 2:41pm; Reply: 20
Quoted from 14445
Oh cool, so SWAMI initially gathered from all my other information that I was most likely a secretor, which is why it didn't change much at all when I chucked "secretor" into the mix?  



If you are using SWAMI Xpress version 1 (the current release), I do not think you can infer any significance to the fact it gave secretor values.

If my testing is correct, if you do not specify a secretor status, it assumes everyone is a secretor. It does not matter what other data you put in you are a secretor regardless (unless you put in that your a nonsecretor or Lewis values).

Assuming everyone is a secretor is the correct assumption for 80 to 85% of the population.




So without testing you have about an 80 to 85% chance of being secretor.

You got no new information from running SWAMI Xpress version 1, you still have the same percentage chance of being a secretor as before.



Posted by: Mototime, Thursday, October 6, 2011, 11:41pm; Reply: 21
Do we know for a fact that if both parents are non-secreters then in fact their children will be non-secreters? Just for the record my wife and both parents have all been on Swami for several months and as stated before all tested as non-secreters. Non of us started to follow it because of any specific problem only for better overall health and quality of life. We all have seen remarkable benefits from compliance and I personaly have become fascinated by Dr. D's research. To me it is all based on science and fact and not on theory! That's why I wanted to know if anyone ever found the saliva test to be inaccurate because of how important it is to the overall Swami food selections!
Posted by: ABJoe, Friday, October 7, 2011, 12:32am; Reply: 22
Quoted from Mototime
Do we know for a fact that if both parents are non-secreters then in fact their children will be non-secreters?

This is the way genetics works...  The recessive gene cannot override the dominant, so if a parent has a recessive characteristic, they can only pass on the recessive allele.  If both parents are passing on a recessive allele, the child can only exhibit the recessive trait as well...

As for whether the test is ever wrong, I assume there are conditions where it could be wrong, but have seen no numbers about how often or under what conditions...
Print page generated: Thursday, April 24, 2014, 2:54am