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BTD Forums  /  The GenoType Diet  /  Can children be Genotyped?
Posted by: Caz B, Wednesday, March 19, 2008, 10:41am
Just one more question b4 I go to bed  :)

Do you have to be fully developed b4 you are measured for Genotype?

Just wondering whether to follow Genotype or Blood type for my daughters aged 12 and 8.

Has anyone else measured their children?  I'm asking because my youngest measures as a Gatherer (Type O) but she is shaped exactly like my husband (Teacher Type A) - almost no body fat, sinewy.

Would appreciate any comments, thanks :)
Posted by: Mrs T O+, Wednesday, March 19, 2008, 12:45pm; Reply: 1
From what I have read, it may not be set in concrete. But if she is an O, go ahead & try the gatherer diet. I wouldn't worry about it too much. If she does the regulat O diet, that may be better, so she doesn't get too obsessed at this young age.
I have mentioned (I think) in the GTD site that I probably would have been a hunter, but there were certain events starting about age 12 that changed things. My gatherer status is borderline, & I have more outward characteristics of the other 2 O GTs. The main gatherer things I have are that the family diseases are more the gatherer type(vascular & cancer).
The main thing, is to try things & see how she is, but don't obsess & talk about it too much. If you are a gatherer, give her a similar diet, but don't panic if she likes some other O things.  We are all still learning!
S S & L,
Mrs "T"     O+    
Posted by: Ribbit, Wednesday, March 19, 2008, 2:04pm; Reply: 2
I think my 5 y.o. is on the perfect diet for her right now--the AB nonnie diet.  As long as we avoid her allergens (wheat, soy, part-time dairy, part-time eggs, newly-discovered peanuts), she does very, very well.  It could be that one of the GT diets would be better for her, but right now I'm not going to experiment.

My 3 y.o. son, on the other hand, may improve on the GTD.  I may experiment with him.  If I'm a Warrior, will he be a Warrior, both being As?
Posted by: jayneeo, Wednesday, March 19, 2008, 9:32pm; Reply: 3
not necessarily, Ribbit...remember grandma's revenge? (O is recessive)
Posted by: Ribbit, Friday, March 21, 2008, 7:02pm; Reply: 4
My mother is an O.  So that could really change things even if he and I are both As?
Posted by: jayneeo, Friday, March 21, 2008, 7:06pm; Reply: 5
it could...
Posted by: Lola, Saturday, March 22, 2008, 4:30am; Reply: 6
if he too has a recessive O gene, there s a slight chance the baby is an O, cause A is dominant.
only O plus O make O
Posted by: Ribbit, Monday, March 24, 2008, 12:52am; Reply: 7
Wait.  So even though he's an A, he could be a genotype that could include some type Os?  I didn't think As and Os shared any genotypes.
Posted by: Lloyd, Monday, March 24, 2008, 12:59am; Reply: 8
GT4 = Explorer = Any ABO

It's a less bloody genotype.   :P
Posted by: Lola, Monday, March 24, 2008, 1:00am; Reply: 9
who was talking about GTs?
thought this was about As having an O recessive gene to pass on to their kids...... :)
Posted by: Ribbit, Monday, March 24, 2008, 1:19am; Reply: 10
No, I wanted to experiment with the GTD for my son, but I wanted to know if he'd automatically be a Warrior since I am.  Maybe I can take his fingerprints and see if that'll shed any light.
Posted by: Symbi, Friday, March 26, 2010, 6:38am; Reply: 11
I found some info on jaw angle (gonial angle) a while ago that may be a reason that it isn't recommended to genotype children.  

Generally children start with a wide gonial angle and the angle decreases as they get older (and continues to so even into adulthood.  :o  Wonder if that means anyones genotype may change as they get older?)  Interesting also that women are likely to have wider jaw angles.  That really fits with the Gatherer genotype and Warrior genotype ?Nomads I don't know about much.

Quoted Text

"Cross-sectional studies indicate an increase in the size of the gonial angle from early embryonic stages to the time of birth and a continuous decrease from birth to old age. The decrease is greatest before 6 years of age; thereafter until adult life the rate of decrease is about one-half as great; and from maturity to old age it is only a few degrees. A complete loss of teeth may reverse the usual age changes and the gonial angle becomes more obtuse again."

Quoted Text

Also here:
"In previous studies, it was generally agreed that the size of the gonial angle is larger in children, and gradually decreases as they get older.."

Posted by: Lola, Friday, March 26, 2010, 7:05am; Reply: 12
that and other obvious measurements......
yet still doable
Quoted Text
Dr D
Actually they probably benefit from whatever current GT they happen to be, even if the eventually morph into another one.
Posted by: Alek, Friday, March 26, 2010, 12:41pm; Reply: 13

I think 15 + kids are ready for measurements.
Posted by: paul clucas, Friday, March 26, 2010, 8:49pm; Reply: 14
It is funny that you mention this, Symbi.

Jaw angle and close physical resemblance is how I "Genotype" my kids.  Both the kids look like me, but DD has a wide gonial angle and long head of a Warrior.  DS looks like me at the same age: large ribcage, large head.  Stretchy sweaters, buttoned shirts, or v-necks are the only possible tops for him.

Body segment lengths are a nonsense before full height is achieved.  I grew four inches a year in high school - so measuring at any age before 19 seems risky to me.  Fingerprints are all about visibility - if you can see them clearly enough, then go ahead.  You have to wait for the second teeth for the dental identifiers, obviously.  Finger length, leg opening and wrist encirclement are in the same category as body segment measurement.

I have hope that a database with a large enough set of fingerprints and professional Genotyping analysis will eventually give dermatoglyphics a stronger predictive role.

Genotyping your child only makes sense if you have some pressing reason.  I would prefer to see such children go to practioners instead of parents making guesses.
Posted by: PCUK-Positive, Friday, March 26, 2010, 11:50pm; Reply: 15
That's a good idea When is Dr D next in the uk or Ireland for a visit I’ll book an appointment.
Posted by: Lola, Saturday, March 27, 2010, 1:32am; Reply: 16
Tom Greenfield
clinic number is +44 1227 761 000
web page:
Posted by: C_Sharp, Saturday, March 27, 2010, 3:40pm; Reply: 17
GenoType diet classification are based on epigenetics so one must consider gene expression as well as the actual genes.

So Ribbit, your son may be a teacher or explorer instead of a warrior for a number of reasons:

(1) The half of his genes inherited from your husband may not exactly match yours. (Blood type is only one of the genes contributing to GenoType)

(2) The environment in your womb during his gestation may not exactly match the environment you experienced inside your mother.

(3) The environment he was exposed to after birth would certainly be different than that of your early childhood.
Posted by: ABJoe, Saturday, March 27, 2010, 4:18pm; Reply: 18
Quoted from Ribbit
My 3 y.o. son, on the other hand, may improve on the GTD.  I may experiment with him.  If I'm a Warrior, will he be a Warrior, both being As?

Since he has been typed, the only GTD difference will be due to epigenetic differences or pre-natal environment.  He can be any of the Genotypes that A can be...
Posted by: Ribbit, Sunday, March 28, 2010, 1:44am; Reply: 19 old thread resurrected. He's 5 now.   ;)
Posted by: ABJoe, Sunday, March 28, 2010, 3:27am; Reply: 20
I guess I missed it the first time around...  No one ever accused me of being prompt! ;)   ::)   ;D
Posted by: Ribbit, Monday, March 29, 2010, 11:15pm; Reply: 21
That's alright, it still applies. ;)
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