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BTD Forums  /  Eat Right 4 Your Type  /  Blood Type Guessing: Good At It?
Posted by: san j, Thursday, June 6, 2013, 9:31pm
When you don't know someone's type, but have access to much of his or her health history, plus you know his or her personality pretty well, how accurate do you think your guess can be?

I wish there were some fairly efficient checklist or something. Because - in hindsight - it all makes sense to me, I can usually see why I'd guessed wrong: Which critical factor I'd neglected to consider. It's often not because I didn't have the necessary information or couldn't possibly have deduced it.

I once blogged on typeguessing, here:
http://www.dadamo.com/B2blogs/blogs/index.php/2010/01/10/i-stand-corrected-adventures-in-type-gue?blog=8
Do y'all have your own track records - or methods - with this?
If anyone has a handy-dandy questionnaire/ point-system/ algorithm, do post it here!
Posted by: Captain_Janeway, Friday, June 7, 2013, 1:08am; Reply: 1
My track record is not bad. My sister in law is a type B+ and based on her body type I guessed that she was a gatherer before I knew her blood type. Her husband is a type A and probably a Teacher or Warrior, but I am guessing that their youngest son is an AB.

I know that both of his older kids from a previous marriage are type A's, but this kid plays football and is very charming. But it's possible that he could be any of the 4 types. Ty has just turned 17 and can now donate blood.

I was surprised to find out that my hubby is a type A- before we got married. I was thinking that maybe he was either an O or an AB. Tall and very solidly built. Absolutely no health problems at all.

Another sister in law and niece are both type B+ and very much Nomads to a T. If I did not know my SIL's blood type I would have guessed that she was a B. She eats a lot like a Nomad and really does not follow  the BTD or GTD.
Posted by: san j, Friday, June 7, 2013, 1:11am; Reply: 2
Quoted from Chloe
Some people are easier to guess, once they tell me their blood type...
  :D

Gee, sweetheart, it's a shame you went to all that trouble with your post.
This is about guessing someone's bloodtype.
Title: "Blood Type Guessing..."
not
"Genotype Guessing"... :-/

C'mon back with another post if you've ever tried to guess someone's blood type!  :D ;) :K)
Posted by: ABJoe, Friday, June 7, 2013, 2:03am; Reply: 3
I am rarely in a position to have someone's medical information and know their personality, without knowing their blood type - or subsequently learning it...
Posted by: san j, Friday, June 7, 2013, 4:00am; Reply: 4
Quoted from ABJoe
I am rarely in a position to have someone's medical information and know their personality, without knowing their blood type - or subsequently learning it.


The majority of Americans don't know their own bloodtypes, let alone those of their near and dear. People are, in fact, more typically privy to some idea of their spouses', children's, sibling's, and parents' *general* health histories than they are their bloodtypes.
But, hey, ABJoe, this isn't a survey. Just a shout out to those who've ever given this any thought. Years back, it was a very popular subject here at dadamo.
Posted by: DoS, Friday, June 7, 2013, 10:05am; Reply: 5
I'm pretty good at it.
Posted by: Chloe, Friday, June 7, 2013, 1:00pm; Reply: 6
Quoted from san j
  :D

Gee, sweetheart, it's a shame you went to all that trouble with your post.
This is about guessing someone's bloodtype.
Title: "Blood Type Guessing..."
not
"Genotype Guessing"... :-/

C'mon back with another post if you've ever tried to guess someone's blood type!  :D ;) :K)


I deleted it...C

Posted by: PCUK-Positive, Friday, June 7, 2013, 2:02pm; Reply: 7
Irely on DOS to tell me geno type ;) but i'm reasonable at guessing blood type. but i do get it wrong sometimes.
Posted by: san j, Friday, June 7, 2013, 9:46pm; Reply: 8
Quoted from policychecker
i'm reasonable at guessing blood type.
Gotta method?
Posted by: Easy E, Saturday, June 8, 2013, 12:29am; Reply: 9
If you can guess genotype, it narrows down the blood types it can be, so genotypes can help guess blood type i would think.  
Posted by: Easy E, Saturday, June 8, 2013, 12:30am; Reply: 10
But it also helps to know a blood type to guess a genotype i suppose :)
Posted by: C_Sharp, Saturday, June 8, 2013, 12:49am; Reply: 11
Why guess?

There is a $10 test that gives you a definitive answer:

http://www.4yourtype.com/prodinfo.asp?number=YTE001

If $10 is too much, donate blood.

Do not base decisions on guesses use facts.
Posted by: DoS, Monday, June 10, 2013, 1:40am; Reply: 12
C you ever heard of "fun"? We aren't always trying to know a blood type for diet reasons.
Posted by: san j, Monday, June 10, 2013, 6:14am; Reply: 13
Well, it's not just fun, though I agree, DoS - it can certainly be fun!  :)

Our friend DoS and plenty of other folks here like to guess celebrity blood types, too, if I recall.
Me, I've just hazarded guesses to either help people or to understand more about my own family and acquaintances. Sometimes family members have passed on and there's no way I'll ever know, so I guess. Ain't no $10 test for that, C_sharp.  :-/ ;)
Posted by: ruthiegirl, Monday, June 10, 2013, 2:19pm; Reply: 14
I'd guessed at my kids' blood types before I had them tested. I already knew that I'm an O and their fathers are Bs (though I had reason to suspect Jack's bio dad may not have been truthful.) I had Hannah pegged as an O, while I guessed that Jack and Leah were Bs. I was wrong about Leah.
Posted by: san j, Monday, June 10, 2013, 5:26pm; Reply: 15
Quoted from ruthiegirl
I'd guessed at my kids' blood types before I had them tested. I already knew that I'm an O and their fathers are Bs (though I had reason to suspect Jack's bio dad may not have been truthful.) I had Hannah pegged as an O, while I guessed that Jack and Leah were Bs. I was wrong about Leah.

Interesting, ruthiegirl.
Wondering how you arrived at your estimates - rightly and wrongly.

Posted by: SusanGeary, Monday, June 10, 2013, 10:38pm; Reply: 16
I don't see how you could possibly guess just by their personality.  Personalities are all over the place.  Health issues might be a better guess but even there I've known many O's to have heart disease and cancer so that's not scientific either.  It's probably a good idea to get a blood test to find out.
Posted by: ruthiegirl, Monday, June 10, 2013, 10:43pm; Reply: 17
I guessed mine simply because Hannah is lactose intolerant and the other two did great on dairy. I figured they must be Bs since Bs do well on dairy. Nope. Leah's just an O who does well on dairy.
Posted by: san j, Tuesday, June 11, 2013, 12:10am; Reply: 18
Quoted from ruthiegirl
I guessed mine simply because Hannah is lactose intolerant and the other two did great on dairy. I figured they must be Bs since Bs do well on dairy. Nope. Leah's just an O who does well on dairy.

The dairy thing, as I'm sure you know, can also change over time, especially during early childhood. Toddlers who, for instance, don't do well with cow's milk or its fat might do very well with it a couple of years down the road.
But, yes, SusanGeary: "Personality" factors alone or medical factors alone are less likely to deliver an accurate guess. Even combining them isn't a sure thing.
But some people have systems or hunches with better results than others. Often from having larger samples, greater experience.

Posted by: BCgal, Tuesday, June 11, 2013, 2:27am; Reply: 19
I guess my girlfriend's husband as an O, and she thinks so too.  He won't let us test him and says he's an E for everything he wants it eat.  He's very slim.  She's an A, but only follows it about 30%.  He hasn't eaten red meat for years, but eats fish and poultry.  But whenever he gets his blood done with Live blood cell Analysis, the lady is always telling him he has to eat more protein, and I bet red meat will do wonders for him.
Posted by: san j, Tuesday, June 11, 2013, 5:59pm; Reply: 20
Quoted from BCgal
I guess my girlfriend's husband as an O, and she thinks so too.  He won't let us test him and says he's an E for everything he wants it eat.  He's very slim.  She's an A, but only follows it about 30%.  He hasn't eaten red meat for years, but eats fish and poultry.  But whenever he gets his blood done with Live blood cell Analysis, the lady is always telling him he has to eat more protein, and I bet red meat will do wonders for him.

What are the factors that have led your friend and you to believe her husband is type O?

Posted by: DoS, Tuesday, June 11, 2013, 10:13pm; Reply: 21
I go by whatever I can get. But how someone looks usually plays the biggest role.
Posted by: Easy E, Wednesday, June 12, 2013, 2:28am; Reply: 22
There are some features of personality that can be good hints.  But i'm sure there are overlaps and always there are exceptions to rules.
.
I thought a friend of mine was an A, but he said he is O, so he has gotta be a hunter. About 6 foot 1 or so, two inches taller than me (i'm 5'11", thought i would be like 6'4"!), but longer and lankier for sure.  We had a fallout and for now do not talk, but when the time comes it will be ok.  Likes to one up and bad boundaries.

I thought another friend of mine was O, but he is A, so he has gotta be a teacher, because he is long and kind of wiry, about 6 foot 1 like my other friend, but center of gravity is lower.  Very good athlete, works nights, catches little details, and sees the big picture too.  Smaller frame than other friend.  Likes to one up, but good boundaries.

I'm about 20 pounds heavier and stronger, but he can easily throw me around in grappling and beats me always in tennis, though i have perhaps more endurance and can take more punishment.  I did beat him in basketball this weekend, so that was a good victory.  I like to one up sometimes and other times do not care at all.  My boundaries are improving, used to be bad.  These are learned things i believe.
Posted by: Mrs T O+, Wednesday, June 12, 2013, 1:57pm; Reply: 23
I have been worng about some As. They are very outgoing, loud, & opinionated! Those are not typical A characteristics!
My guessing is a mixed bag. It is fun to try to guess.  I also may make an educated guess with health problems.  I had met a woman who was diagnosed with MS & she said she was a B, which goes with autoimmune disease. She moved away, but after she returned, she soon got very sick & died.  I wonder if she would have tried BTD, it would help. I know it would, but each person makes her own choices.
My nuclear family members do have classic characteristics of their types.  But others don't!
Posted by: san j, Wednesday, June 12, 2013, 6:48pm; Reply: 24
Quoted from Mrs T O+
My guessing is a mixed bag. It is fun to try to guess.  I also may make an educated guess with health problems.  I had met a woman who was diagnosed with MS & she said she was a B, which goes with autoimmune disease. She moved away, but after she returned, she soon got very sick & died.  I wonder if she would have tried BTD, it would help. I know it would, but each person makes her own choices.

Hi, Mrs. T. O+.
Firstly, you don't say that you guessed her bloodtype; you say you "found out" her bloodtype.
So I'm not seeing the connection?


Aside from that: Did you know that autoimmune disease is probably most common for Type O?
And, just to pursue your anecdote:
You met someone, found out about one disease she had and what her blood type was, and learned she "got very sick and died" and claim you "know" what "would" have helped.

Please remember:
The BTD cannot and will not change the fact that Every one of us is going to die, and we are going to die of something, whatever choices we make in the meantime.
It's always sad when people think they have found The Cure for mortality, see someone die, and state that they "know" their Cure would have "helped".
Maybe it wouldn't have. Maybe the person would have found it a bother, annoying, a distraction from how she wanted to allocate what little energy/ resources she had, and/or from whatever family mealtimes, etc. were still a joy for her.
How a person will receive major lifestyle corrections when she is already ill is also not something you can guess or critique, especially knowing no more about her than one disease and bloodtype.
Guessing is, yes, fun. For my own part, I might or might not mention the diet and share a book.
And, like you, Mrs. T O+, I accept that people make their own choices. I think that's a good thing.
And this acceptance helps us to process the deaths of those we care about, too.
Posted by: BCgal, Wednesday, June 12, 2013, 8:34pm; Reply: 25
Sanj ;
  regarding your question about our guess on my girlfriend's husband being an O.  I'm not sure I can really answer that totally.  Different health issues I guess,  and he loves whole milk but then gets severely congested after.  He doesn't drink it regularly, but now drinks soy milk which causes similar reactions, though he doesn't see it.  His wife factors in certain personality traits.  I think what really got me thinking that way is his bow legs and I figured he must be a hunter and if that's the case he has to be an O.  Lots of other little things but can't really put my finger on them.  

   If he would just  let us do the blood typing kit on him we'd know for sure.
Posted by: Easy E, Wednesday, June 12, 2013, 11:25pm; Reply: 26
Actually B's can be prone to autoimmune problems when out of balance and have bad allergies.  Prob not the anaphalyctic strength of hunter allergies but still pretty bad.
Posted by: Averno, Thursday, June 13, 2013, 3:46pm; Reply: 27

Once certain genotype characteristics have been observed, sheer instinct may narrow down a likely blood type. I find myself doing this all the time for amusement. Personality is a factor, too-- less reliable as a sorting tool, but useful where the tipping-points matter. My record for guessing friends and acquaintances has been fairly good. Wouldn't know about strangers, obviously, but certain people are clear GT archetypes pointing towards a likely BT.

Germane to this thread is a discussion of how we view the gains of such knowledge as the science of blood typing becomes more relevant to more people. Our deepest instinctual senses do differentiate "same" from "not same", and we bias ourselves both consciously and unconsciously all the time. Some bias we acknowledge, some we don't. We may face a future confronted with the implications of an unwanted societal schism leading to a more insular cultural dynamic. Education in progressive nonviolence would be well advised.










    
Posted by: yaeli, Tuesday, June 18, 2013, 8:37am; Reply: 28
I am very curious about people's blood types.

A few times I guessed acquaintances' blood type successfully. It was according to the type of personality combined with perosnal charactersitics as per Dr. D's descriptions. Also according to a person's look - but this is already intuitional.

Few cases were so obvious, that I hit on the first score. One of them, a person I've known very well for many years, I dragged to the blood bank and had the director perform the test - he came out as I had been convinced: an AB. Another person, a B lady doctor, I guessed by her features and by her manners.

With many O's I have a strong gut feeling- I judge by the temperament: They are 'exactly' like myself.

The great BUT is with blood type A. My father was an A. In childhood I felt very very close to him like to nobody else in the world, I clang to him and identified with him. The result is that too many times I am mistaken and confuse A for O. Here is the place where I am doing a work to mentally discern between 'Self' and 'Dad'. It should be quite easy, as the differences are tremendous.

While discussing diets I often ask people what is their blood type. Of course I can do this only if I reach a point with them when it feels safe and I don't fear crossing their boundaries. This way I also broaden my 'model gallery'.
Posted by: cajun, Tuesday, June 18, 2013, 8:43pm; Reply: 29
I am curious as to how anyone can tell/guess a person's blood type by their "looks"? ??)

When I started the BTD and came to this forum..after reading many posts... I expected to be the "different" A positive teacher because I have dark hair, eyes and skin tone. Then I found out that many A teachers have either dark hair or eyes but I thought most were light haired with light eyes and skin.

I have O friends with very dark hair/skin/eyes and others with red/blonde hair and light skin and eyes. Some of these O's are tall and thin and others are short and stocky. They all have varying features, also.

So...how do looks play into this? ??)
Posted by: yaeli, Tuesday, June 18, 2013, 8:58pm; Reply: 30
Quoted from cajun
So...how do looks play into this? ??)
Yes, this is not accurate and sounds stupid. Instead of "looks" I should have used "facial expression" and "facial features". Sometimes you look at someone and you just know. Earlier this evening a taxi driver told me that once a lady passanger entered his taxi and immediately he had a hunch about her and was convinced that she was born at the same date as himself. He asked her and she almost fainted, and required to see his identity card. He showed it to her. She was born exactly on the same day, same year.

Posted by: san j, Wednesday, June 19, 2013, 12:00am; Reply: 31
Quoted from yaeli
Yes, this is not accurate and sounds stupid. Instead of "looks" I should have used "facial expression" and "facial features". Sometimes you look at someone and you just know. Earlier this evening a taxi driver told me that once a lady passanger entered his taxi and immediately he had a hunch about her and was convinced that she was born at the same date as himself. He asked her and she almost fainted, and required to see his identity card. He showed it to her. She was born exactly on the same day, same year.

I don't get it. Are you saying he knew her blood type by looking at her?

Posted by: yaeli, Wednesday, June 19, 2013, 3:03am; Reply: 32
Quoted from san j

I don't get it. Are you saying he knew her blood type by looking at her?

It went like this: I had been remotely acquainted with this lady for a long time before I read ER4YT. She is a doctor in the hospital where I had been working since 1992, and I always liked her from a distance. At a certain moment - in 2006 or 2007 - I was discussing BTD with a couple of staff members at their office, and it suddenly occured to me that she must have been blood type B, somehow I was pretty sure about it. I asked her and she confirmed. So I wasn't just looking at her, but had also a former established image of her behaviour and an impression about her personality. This probably was a one-time lucky shot, but I also believe that my good attitude towards her contributed to the momentary clear sight and feeling of assuredness. I guess that a good eye yields good results.

Posted by: Spring, Wednesday, June 19, 2013, 3:57am; Reply: 33
Quoted from Chloe
I deleted it...C


Can't say that I blame you.  ;)
Posted by: yaeli, Wednesday, June 19, 2013, 6:48am; Reply: 34
:D
Posted by: san j, Wednesday, June 19, 2013, 7:06am; Reply: 35
Quoted from yaeli
With many O's I have a strong gut feeling- I judge by the temperament: They are 'exactly' like myself.

The great BUT is with blood type A. My father was an A. In childhood I felt very very close to him like to nobody else in the world, I clang to him and identified with him. The result is that too many times I am mistaken and confuse A for O. Here is the place where I am doing a work to mentally discern between 'Self' and 'Dad'. It should be quite easy, as the differences are tremendous.

This is quite interesting.
Thanks for sharing it.

Posted by: 43841 (Guest), Thursday, July 25, 2013, 6:43pm; Reply: 36
I guessed that I'm an O because I still have to pluck up the courage to donate blood. Anyway, I'm very sure I'm right because I have mostly stuck to the O diet and now have strong nails for the first time in a long time.  Can I expect any other positive changes?

Also I have allergies/hay fever and had a stomach ulcer so it wasn't that difficult to guess.
Posted by: ToHimIPray, Thursday, July 25, 2013, 10:20pm; Reply: 37
I have guessed "O" blood types almost 100%. My guesses were based on addictions (food, alcohol, cigarettes, etc) and personality (very friendly, but with short tempers). I haven't been successful with other blood types, but I do think my youngest daughter is a "B" since she has suffered with eczema since she was very young. I have changed my diet and haven't had eczema for years, but my daughter refuses to change her diet. She says it should be illegal to stop eating chicken.
Posted by: Enobattar, Friday, July 26, 2013, 1:40pm; Reply: 38
So true, Sanj.  (dissappointed)
Posted by: Jane, Friday, July 26, 2013, 2:45pm; Reply: 39
ToHimIPray,
Short tempers?  I'm an O and not like that at all.  My boys are both A's and have much shorter tempers than I have and their father is an AB and really had a short temper.
Posted by: ginnyTN, Sunday, July 28, 2013, 1:37am; Reply: 40
It has been really amusing to read all of these entries.  The person who is nearest and dearest to me - my husband of 32 years - is built more like an O, acts more like an O, used to eat more like an O, etc.  In fact, even though he was career military and knew for sure he was an A I made him take the D'Adamo blood test.  

The local fellow who teaches the ER classes here and is quite good at "guessing" blood types because of long experience remarked that my hubby is the most untypical A he's ever seen!  

So much for guessing blood types, eh?

Oh yeah - both he and I are nonnies also, but I had the autoimmune diseases and other nonnie problems whereas he didn't.    

......I DO realize that this is really a fun thread and hope the above didn't sound too serious..........
Posted by: Lola, Sunday, July 28, 2013, 4:19am; Reply: 41
:)
Posted by: san j, Sunday, July 28, 2013, 4:40am; Reply: 42
Quoted from ToHimIPray
I have guessed "O" blood types almost 100%. My guesses were based on addictions (food, alcohol, cigarettes, etc) and personality (very friendly, but with short tempers). I haven't been successful with other blood types, but I do think my youngest daughter is a "B" since she has suffered with eczema since she was very young. I have changed my diet and haven't had eczema for years, but my daughter refuses to change her diet. She says it should be illegal to stop eating chicken.

My niece had terrible eczema throughout her childhood.
She has type O blood.


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