Interpretação de Texto - UFPR

Why do we have blood types?

In 1996 a naturopath named Peter D'Adamo published a book called Eat Right 4 Your Type. D'Adamo argued that we must eat according to our blood type, in order to harmonise with our evolutionary heritage. Blood types, he claimed, “appear to have arrived at critical junctures of human development.” According to D'Adamo, type O blood arose in our hunter-gatherer ancestors in Africa, type A at the dawn of agriculture, and type B developed between 10,000 and 15,000 years ago in the Himalayan highlands. Type AB, he argued, is a modern blending of A and B.

From these suppositions, D'Adamo then claimed that our blood type determines what food we should eat. With my agriculture-based type A blood, for example, I should be a vegetarian. People with the ancient hunter type O should have a meat-rich diet and avoid grains and dairy. According to the book, foods that are not suited to our blood type contain antigens that can cause all sorts of illness. D'Adamo recommended his diet as a way to reduce infections, lose weight, fight cancer and diabetes, and slow the ageing process.

D'Adamo's book has sold seven million copies and has been translated into 60 languages. It has been followed by a string of other blood type diet books; D'Adamo also sells a line of blood-type-tailored diet supplements on his website. As a result, doctors often get asked by their patients if blood type diets actually work.

The best way to answer that question is to run an experiment. In Eat Right 4 Your Type D'Adamo wrote that he was in the eighth year of a decade-long trial of blood type diets on women with cancer. Eighteen years later, however, the data from this trial have not yet been published.

Recently, researchers at the Red Cross in Belgium decided to see if there was any other evidence in the diet's favor. They hunted through the scientific literature for experiments that measured the benefits of diets based on blood types. Although they examined over 1,000 studies, their efforts were fruitless. “There is no direct evidence supporting the health effects of the ABO blood type diet,” says Emmy De Buck of the Belgian Red Cross-Flanders.

After De Buck and her colleagues published their review in the American Journal of Clinicai Nutrition, D'Adamo responded on his blog. In spite of the lack of published evidence supporting his Blood Type Diet, he claimed that the science behind it is right. “There is good science behind the blood type diets, just like there was good science behind Einstein's mathematical calculations that led to the Theory of Relativity,” he wrote.

Adapted from: ZIMMER, Carl. Why do we have blood types? Crash diet. Retrieved from: http://www.bbc.com/future/story/20140715-why-do-we-have-blood-types. Access: August, 2014.


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hunter - caçador
agriculture - agricultura
blending - mesclando
claimed - alegou
determines - determina, estabelece

Vocabulário do texto:

Inglês
Português
why
por que 
blood
sangue
types 
tipos
published
publicou
book
livro
eat
comer
right
corretamente
your
seu
argued
argumentou
according
de acordo com
heritage
herança
appear
dar a impressão
arrived
 chegou, alcançou, atingiu
development
desenvolvimento
food
alimento, comida
ancient
antigo
avoid 
evitar
grains
grãos, sementes, cereais
dairy
lacticínios
cause  causa
sorts  tipos
 illness  doenças
 recommended recomendou 
diet  dieta, regime 
 way  caminho, forma 
 reduce reduzir 
infections  infecções 
 lose perder 
weight   peso 
fight    combater, lutar
slow  reduzir a velocidade 
ageing   envelhecimento
 sold vendeu 
copies  cópias 
 translated traduziu 
 languages línguas 
 followed seguido por  
 sells vende 
 line  linha
 supplements suplementos 
actually   realmente 
work    funcionam
run an experiment    experimentar, tentar
wrote (write)  escreveu (escrever) 
decade  década 
 trial experimentação, prova 
data  dados 
 published  publicou
 recently  recentemente 
 researchers pesquisadores 
 decided decidiram 
 evidence evidência 
 favor  a favor de 
 hunted buscaram, procuraram 
experiments  experiências  
 measured mediram 
 benefits benefícios 
 examined examinaram  
 studies estudos 
 efforts esforços 
 fruitless   infrutíferos  
 supporting   apoiando 
responded  respondeu  
 science ciência  
behind   atrás de


1. Which of these statements DOES NOT CORRESPOND to information given in the text about the blood type diet?

a) There are many books published about the blood type diet.
b) D'Adamo's claims about following a blood type diet are based on his personal experience with it.
c) A Belgium study made use of 1,000 volunteers to check on the blood type diet
d) According to D'Adamo, the blood type diets are being used on women with cancer.
e) The book Eat Right 4 Your Type written about the blood type diet sold millions of copies worldwide.

Resposta correta: b

Resolução: A questão pede para o aluno identificar a opção incorreta – a que não corresponde à informação apresentada no texto.

A opção b é a incorreta, pois o texto nos informa que D’Adamo afirma que seu livro é baseado em evidências científicas, não em suas experiências pessoais. O final do texto, por exemplo, traz a seguinte citação de D’Adamo: “There is good science behind the blood type diets” (Há uma ciência confiável por trás das dietas dos tipos sanguíneos).

2 Mark the correct alternative, according to the text.

a) The different blood types are the result of the migration movements human beings performed.
b) The author of Eat Right 4 Your Type has a website where he publishes the results of his researches.
c) The antigens present in our blood type account for the disease we may develop if we do not eat fresh food.
d) Researchers from Belgium recommend the blood type diet as a way to reduce infections and slow the ageing process.
e) Based on the origin of different blood types, Peter D'Adamo claims we should eat accordingly or else become ill.

Resposta correta: e

Resolução: A resposta se encontra na seguinte frase do texto: D'Adamo recommended his diet as a way to reduce infections, lose weight, fight cancer and diabetes, and slow the ageing process. (D’Adamo recomenda a sua dieta como uma forma de reduzir infecções, perder peso, combater o câncer e o diabetes e retardar o envelhecimento).

3. Consider the sentence: “There is good science behind the blood type diets, just like there was good science behind Einstein's mathematical calculations that led to the Theory of Relativity,” Peter D'Adamo says this with the purpose of

a) claiming that what he does is science.
b) admitting that his experiment was based on the Theory of Relativity.
c) rebuting the criticism towards his website.
d) presenting an example which confirms his researches.
e) stating that his study is based on mathematical calculations.

Resposta correta: a

Resolução: A resposta correta é a alternativa a: D’Adamo compara sua dieta à Teoria da Relatividade. Assim, afirma que sua dieta que é baseada na Ciência.

4. According to the text, what is correct to say about Peter D'Adamo?

a) He is a Belgium scientist specialized in the area of nutrition.
b) He receives the support of other doctors to carry out his researches.
c) He claims that Albert Einstein also followed the blood type diet to stay healthy.
d) He wrote a book, has a website and sells diet supplements based on his blood type diet.
e) He published the findings of his research on blood type diets alter an eight-year long trial.

Resposta correta: d

Resolução: Além de trazer informações a respeito do livro que D’Adamo escreveu, o texto nos informa que o autor tem um site que vende suplementos indicados para os diferentes tipos sanguíneos. Essa informação se encontra no seguinte trecho do texto: “It has been followed by a string of other blood type diet books; D'Adamo also sells a line of blood-type-tailored diet supplements on his website”.