Diets tailored to one's blood type?

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Discussion Overview

The discussion revolves around the validity of diets tailored to blood types, specifically the claims made by Dr. D'Adamo. Participants explore the scientific basis for these claims, the role of genetics in diet, and the overall complexity of how diet affects health.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Technical explanation

Main Points Raised

  • Some participants question the scientific validity of Dr. D'Adamo's claims, suggesting they lack controlled studies and rely on anecdotal evidence.
  • Others express skepticism about the idea that genetic factors related to digestion would correlate with blood type, arguing that human populations have not been separated long enough for significant genetic divergence based on diet.
  • A participant mentions that while there are genetic variations affecting digestion, such as lactase and amylase, these are not new genes but rather variations in gene copies.
  • Some participants acknowledge the complexity of how diet impacts health and suggest that the relationship is still being researched.
  • There is a mention of the potential for future advancements in genome sequencing that could allow individuals to tailor diets more specifically to their genetic makeup.

Areas of Agreement / Disagreement

Participants generally express skepticism towards the blood type diet claims, with multiple competing views on the role of genetics in diet and digestion. The discussion remains unresolved regarding the validity of Dr. D'Adamo's assertions and the implications of genetic variations.

Contextual Notes

Participants note limitations in the current understanding of genetics and diet, including the lack of controlled studies supporting blood type diets and the complexity of genetic influences on digestion.

mugaliens
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Is there anything to this?

"http://www.dadamo.com/" ."

Any truth to Dr. D'Adamo's claim, other than getting people to sign up for his program?
 
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While i can respect that train of thought, i have a hard time believeing that all the genitic factors that could relate to how we digest and use food would follow a pattern that matches up with blood type. Never mind the fact that we havnt been separated as a population long enough for truly novel genes to have developed based on diet. Small beneifits at the best imho.
 
mugaliens said:
Is there anything to this?

"http://www.dadamo.com/" ."

Any truth to Dr. D'Adamo's claim, other than getting people to sign up for his program?

Now, how diet affects your health is very complicated and still being worked out.

For an interesting case study review how LCAT deficiency doesn't increase atherogenicity while MTP deficiency does.
 
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I think the short answer is: No, there probably is very little science in the claim.
 
D'Adamo is considered a pseudo-scientific quack. He uses anecdotes and not controlled studies to support the validity of his ideas. His claims of when the different blood types emerged, are also not backed by any facts.

It is generally believed that type A is the earliest, due to that alleles coding for blood type A are the most ancient version of the ABO blood group, shared by primates/humans. He takes great liberty's in deciding which blood type came first.

If he had even one controlled study, on any aspect of his grand ideas. Perhaps the medical world would think of him as something, other then a quack.
 
madcat8000 said:
While i can respect that train of thought, i have a hard time believeing that all the genitic factors that could relate to how we digest and use food would follow a pattern that matches up with blood type.

Agreed.

Never mind the fact that we havnt been separated as a population long enough for truly novel genes to have developed based on diet. Small beneifits at the best imho.

We have been. Lactase is a classic example. Amylase is another. An average caucasian American has almost double the number of copies of the amylase gene AMY1A compared to an average pre-agriculture African. There are large variations within ethnic groups too.

In ten years or maybe even sooner, full genome sequencing will become affordable to a regular person, everyone will be able to tailor their diets to their specific genomes.
 
hamster143 said:
Agreed.



We have been. Lactase is a classic example. Amylase is another. An average caucasian American has almost double the number of copies of the amylase gene AMY1A compared to an average pre-agriculture African. There are large variations within ethnic groups too.

In ten years or maybe even sooner, full genome sequencing will become affordable to a regular person, everyone will be able to tailor their diets to their specific genomes.

Yes but those genes are just copies and not new "novel" genes. A person with more copies will do a slightly better job with a food but nothing really different.
 

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