Blood Type diet Trivia Questions and Answers

1: Who is the most prominent proponent of the blood type diets?
A: Dr. Robert Atkins
B: Dr. Peter J. D’Adamo
C: Dr. Mehmet Oz
D: Dr. Michael Greger
Correct Answer: B
Explanation: Dr. Peter J. D’Adamo is the most well-known advocate for blood type diets.

2: What year was the first study published that tested the benefits of eating according to one’s blood type?
A: 2000
B: 2010
C: 2014
D: 2018
Correct Answer: C
Explanation: The first study comparing biomarkers and diet according to one’s blood type was published in 2014.

3: According to the blood type diet hypothesis, which blood type is considered to benefit from a hunter-gatherer diet?
A: A
B: B
C: AB
D: O
Correct Answer: D
Explanation: Group O is suggested to thrive on a high animal protein diet typical of the hunter-gatherer era.

4: What did the 2014 study find about the relationship between diet and biomarkers for people following the blood-type diet?
A: Biomarkers improved significantly
B: No significant interaction between diet and biomarkers
C: Biomarkers worsened
D: Biomarkers varied drastically
Correct Answer: B
Explanation: The study found no significant interaction between diet and biomarkers for individuals following the blood-type diet.

5: Which diet did the British Dietetic Association name as one of the “Top 5 Celeb Diets to Avoid in 2019”?
A: Paleo Diet
B: Keto Diet
C: Blood Type Diet
D: Atkins Diet
Correct Answer: C
Explanation: The blood type diet was named by the British Dietetic Association as one of the “Top 5 Celeb Diets to Avoid in 2019.”

6: According to blood type diet theory, which blood type should follow a vegetarian diet?
A: O
B: A
C: B
D: AB
Correct Answer: B
Explanation: Blood type A is suggested to follow a vegetarian diet, as this group was believed to have evolved in agrarian societies.

7: Which factor is considered to be the most important according to proponents of the blood type diet?
A: Metabolic rate
B: Blood type
C: Genetic predisposition
D: Caloric intake
Correct Answer: B
Explanation: Proponents of the blood type diet believe that blood type is the most important factor in determining a healthy diet.

8: What evolutionary heritage is linked to blood type B according to the blood type diet hypothesis?
A: Hunter-gatherers
B: Agrarian societies
C: Nomadic tribes
D: Industrial societies
Correct Answer: C
Explanation: Individuals with blood type B are considered to benefit from a diet that includes dairy products, believed to originate in nomadic tribes.

9: As of 2017, how much clinical evidence supports the blood type diet hypothesis?
A: Extensive evidence
B: Some evidence
C: No scientific evidence
D: Inconclusive evidence
Correct Answer: C
Explanation: As of 2017, there is no scientific evidence to support the blood type diet hypothesis.

10: Which gene is claimed by proponents of the blood type diet to be the first human blood type?
A: A gene
B: B gene
C: O gene
D: AB gene
Correct Answer: C
Explanation: Proponents claim that the O blood type was the first human blood type, despite scientific evidence suggesting otherwise.

11: What did phylogenetic networks of human and non-human ABO alleles show about the evolution of ABO blood genes?
A: The B gene was the first to evolve
B: The O gene was the first to evolve
C: The A gene was the first to evolve
D: The AB gene was the first to evolve
Correct Answer: C
Explanation: Phylogenetic networks indicate that the A gene was the first to evolve.

12: Which diet is suggested for individuals with blood type AB according to the blood type diet theory?
A: High protein diet
B: Vegetarian diet
C: Dairy-inclusive diet
D: Intermediate diet
Correct Answer: D
Explanation: Individuals with blood type AB are believed to benefit from a diet intermediate to those suggested for groups A and B.

13: Who pointed out the evolutionary argument against the O blood type being the first human blood type?
A: Peter J. D’Adamo
B: Robert Atkins
C: Luiz C. de Mattos and Haroldo W. Moreira
D: Mehmet Oz
Correct Answer: C
Explanation: Luiz C. de Mattos and Haroldo W. Moreira argued against the claim that O was the first human blood type.

14: What do proponents of the blood type diet believe about lectins?
A: Lectins are harmful to everyone
B: Lectins have the same impact on all blood types
C: Different blood types digest lectins differently
D: Lectins are beneficial for all blood types
Correct Answer: C
Explanation: Proponents believe that people with different blood types digest lectins differently, affecting their health.

15: How did Yamamoto et al. counter the argument about the O blood type representing the ancestral gene at the ABO locus?
A: By saying the AB gene was the first to arise
B: By showing no evidence that the O gene is ancestral
C: By proving that B gene is ancestral
D: By supporting the original claim
Correct Answer: B
Explanation: Yamamoto et al. noted that there is no evidence that the O gene represents the ancestral gene at the ABO locus.

16: What is the underlying hypothesis of blood type diets regarding health problems and food compatibility?
A: Health problems are unrelated to food compatibility
B: Compatible foods cause health problems
C: Incompatible foods prevent health problems
D: Incompatible foods cause health problems
Correct Answer: D
Explanation: The hypothesis suggests that consuming foods not compatible with one’s blood type can cause health problems.

17: According to the blood type diet theory, which group is considered ancestral?
A: Group A
B: Group B
C: Group AB
D: Group O
Correct Answer: D
Explanation: Group O is considered the ancestral blood group in humans according to the blood type diet theory.

18: What significant differences did the 2014 study find among the biomarkers?
A: Biomarkers showed no differences
B: Significant differences in some biomarkers
C: Biomarkers were identical in all participants
D: No biomarkers were measured
Correct Answer: B
Explanation: The study found significant differences in some biomarkers among the groups.

19: What type of diet was suggested for blood type A in the blood type diet hypothesis?
A: High protein diet
B: Dairy-inclusive diet
C: Vegetarian diet
D: Mixed diet
Correct Answer: C
Explanation: A vegetarian diet was suggested for blood type A.

20: What was Peter J. D’Adamo’s profession?
A: Cardiologist
B: Dietitian
C: Naturopath
D: Neurologist
Correct Answer: C
Explanation: Peter J. D’Adamo is a naturopath.

21: What does the British Dietetic Association recommend about the blood type diet?
A: Strong approval
B: Cautious approval
C: Strong disapproval
D: Neutral stance
Correct Answer: C
Explanation: The British Dietetic Association recommends avoiding the blood type diet.

22: What is one of the main criticisms of the blood type diet by scientists?
A: It is too scientific
B: It lacks scientific evidence
C: It is very well supported
D: It is only for certain people
Correct Answer: B
Explanation: The blood type diet is criticized for lacking scientific evidence.

23: According to the blood type diet theory, which group should incorporate dairy into their diet?
A: Group A
B: Group B
C: Group O
D: Group AB
Correct Answer: B
Explanation: Group B is considered to benefit from a diet including dairy products.

24: Who conducted the first study testing the benefits of blood type diets?
A: Peter J. D’Adamo
B: Luiz C. de Mattos
C: Robert D. Brook et al.
D: Yamamoto et al.
Correct Answer: C
Explanation: The study started in 2014 by Robert D. Brook and others was among the first to test the benefits of blood type diets.

25: How common is the O blood type in the world populations?
A: Rare
B: Uncommon
C: Common
D: Very rare
Correct Answer: C
Explanation: The O blood type is common in all populations around the world.

26: What was believed to be the significance of lectins in the blood type diet?
A: Lectins should be avoided by all
B: Lectins affect different blood types uniquely
C: Lectins have no effect
D: Lectins are beneficial to all blood types
Correct Answer: B
Explanation: The blood type diet hypothesis suggests that different blood types digest lectins differently.

27: How critical is the evolutionary basis to the blood type diet hypothesis?
A: It is not important
B: It is moderately important
C: It is crucial
D: It is irrelevant
Correct Answer: C
Explanation: The evolutionary basis is a crucial part of the blood type diet hypothesis.

28: What was the methodology of the 2014 study on blood type diets?
A: Survey
B: Interview
C: Comparison of biomarkers
D: Focus group
Correct Answer: C
Explanation: The study compared biomarkers like body mass index and blood pressure among different diet groups.

29: According to the blood type diet theory, what should the diet of group AB resemble?
A: Vegetarian
B: Hunter-gatherer
C: Dairy inclusive
D: Intermediate diet
Correct Answer: D
Explanation: Group AB should follow an intermediate diet that combines elements of diets for groups A and B.

30: Who is the audience for the blood type diets?
A: Vegetarians only
B: People with lifestyle diseases
C: General public
D: Athletes only
Correct Answer: C
Explanation: The blood type diet is advocated for the general public, based on their blood type.

31: What is the main premise of blood type diets regarding digestive differences?
A: All people have the same digestion
B: Blood types digest foods differently
C: Digestion is dependent on age
D: Gender determines digestion
Correct Answer: B
Explanation: The main premise is that people with different blood types digest foods differently.

32: Which journal published the 2014 study on blood type diets?
A: Journal of the American Medical Association
B: Nutrition Research
C: PLOS ONE
D: The Lancet
Correct Answer: C
Explanation: The 2014 study was published in PLOS ONE.

33: What is the recommendation for people with blood type O regarding grains according to the blood type diet?
A: Eat a lot of grains
B: Avoid grains
C: Grains are neutral
D: Mix grains with proteins
Correct Answer: B
Explanation: People with blood type O are recommended to avoid grains.

34: What health metrics were evaluated in the 2014 blood type diet study?
A: Only weight
B: General well-being
C: Biomarkers such as BMI and blood pressure
D: Daily caloric intake
Correct Answer: C
Explanation: The study evaluated biomarkers such as BMI and blood pressure.

35: According to proponents, which diet best fits blood type A individuals?
A: High protein and dairy
B: Vegetarian
C: Dairy and grains
D: High fat and protein
Correct Answer: B
Explanation: A vegetarian diet is seen as best fitting for blood type A.

36: What is the position of mainstream dietitians on blood type diets?
A: Strongly supportive
B: Mixed opinions
C: Generally unsupportive
D: Completely neutral
Correct Answer: C
Explanation: Mainstream dietitians generally do not support blood type diets.

37: How long did the 2014 study monitor participants?
A: One week
B: One month
C: Six months
D: One year
Correct Answer: B
Explanation: Participants were monitored over a period of one month.

38: For blood type B, what type of foods are emphasized?
A: Fruits only
B: Meat only
C: Dairy products
D: No special foods
Correct Answer: C
Explanation: Dairy products are emphasized for blood type B.

39: What did the British Dietetic Association label blood type diets as?
A: Highly recommended
B: Moderately useful
C: Celeb diet to avoid
D: Scientifically validated
Correct Answer: C
Explanation: The British Dietetic Association labeled it as a “Celeb diet to avoid.”

40: Which blood type diet suggests reducing wheat and beans?
A: O
B: A
C: B
D: AB
Correct Answer: A
Explanation: The diet for blood type O suggests reducing wheat and beans.

41: What is another term often used to describe blood type diets?
A: Paleo diets
B: Fad diets
C: Ketogenic diets
D: Mediterranean diets
Correct Answer: B
Explanation: Blood type diets are often categorized as fad diets.

42: According to the blood type diet theory, what kind of environment led to the development of blood type A?
A: Agrarian societies
B: Hunter-gatherer tribes
C: Urban societies
D: Ocean-based communities
Correct Answer: A
Explanation: Agrarian societies are believed to have influenced the development of blood type A.

43: What enzyme is suggested to be affected by blood types according to proponents?
A: Amylase
B: Lactase
C: Pepsin
D: Lectins
Correct Answer: D
Explanation: Proponents believe lectins are affected by different blood types.

44: How prevalent is the acceptance of blood type diet principles in scientific literature?
A: Widely accepted
B: Marginally accepted
C: Largely unsupported
D: Inconclusively presented
Correct Answer: C
Explanation: The principles are largely unsupported in scientific literature.

45: What diet does the blood type diet associate with the ancestral blood type O?
A: High carbohydrates
B: Low protein
C: High animal protein
D: High dairy
Correct Answer: C
Explanation: A high animal protein diet is associated with blood type O.

46: What was not affected by adherence to the blood type diet in the 2014 study?
A: Physical appearance
B: Biomarkers
C: Mental health
D: Social interactions
Correct Answer: B
Explanation: Biomarkers showed no significant changes for those following the blood type diet.

47: Which type of scientific study is lacking for blood type diets, according to critics?
A: Longitudinal studies
B: Clinical trials
C: Anecdotal studies
D: Meta-analyses
Correct Answer: B
Explanation: Clinical trials are lacking according to critics.

48: What does the term “phylogenetic networks” refer to in the context of blood type evolution?
A: Human populations’ social networks
B: Genetic relationships between different species
C: Network of dietary habits
D: Blood donation compatibility
Correct Answer: B
Explanation: Phylogenetic networks relate to the genetic relationships between different species.

49: Which blood type diet is said to balance traits from blood types A and B?
A: O
B: A
C: B
D: AB
Correct Answer: D
Explanation: The AB blood type diet balances traits from both A and B diets.

50: What major claim about blood type diets is disputed by Luiz C. de Mattos and Haroldo W. Moreira?
A: Diet consistency
B: Ancestry of the O blood type for humans
C: Benefits for athletes
D: Compatibility for children
Correct Answer: B
Explanation: They dispute the claim that O blood type was the first human blood type.

51: How is the evidence for the efficacy of blood type diets often described?
A: Inconclusive
B: Overwhelming
C: Highly credible
D: Widely accepted
Correct Answer: A
Explanation: The evidence for efficacy is often described as inconclusive.

52: What notable conclusion about diet adherence was drawn from the 2014 study?
A: Improved overall health
B: No diet adherence was observed
C: Diet adherence did not match biomarker changes
D: Participants health worsened
Correct Answer: C
Explanation: There was no significant correlation between diet adherence and biomarker changes.

53: According to the blood type diet theory, what should blood type O individuals avoid?
A: Meat
B: Dairy
C: Gluten
D: Vegetables
Correct Answer: B
Explanation: Blood type O individuals are recommended to avoid dairy.

54: What population group is often targeted by fad diets like the blood type diet?
A: Teenagers
B: Seniors
C: Athletes
D: General public
Correct Answer: D
Explanation: Fad diets often target the general public.

55: According to critics, what is a major flaw in the blood type diet hypothesis?
A: Justifies eating junk food
B: Encourages overeating
C: Lacks scientific validation
D: Easy to follow
Correct Answer: C
Explanation: A major flaw is the lack of scientific validation for the hypothesis.

56: What is the primary health focus of the blood type diet according to its advocates?
A: Mental clarity
B: Weight loss
C: Dental health
D: Energy levels
Correct Answer: B
Explanation: Weight loss is often a primary health focus for advocates of the blood type diet.

57: When was the first advocacy for blood type diets said to have started gaining popularity?
A: 1960s
B: 1980s
C: 1990s
D: 2000s
Correct Answer: C
Explanation: Blood type diets began to gain popularity in the 1990s.

58: What has yet to be conclusively proven about blood type diets from an evolutionary standpoint?
A: Origin of blood types
B: Taste preferences
C: Effectiveness for children
D: Impact on immune system
Correct Answer: A
Explanation: The evolutionary origin of blood types has yet to be conclusively proven.

59: What organization declared the blood type diet as one to avoid in 2019?
A: American Heart Association
B: British Dietetic Association
C: World Health Organization
D: National Institutes of Health
Correct Answer: B
Explanation: The British Dietetic Association declared it as a diet to avoid in 2019.

60: What hypothesis is central to the blood type diet’s appeal to the general public?
A: Metabolic rate variation
B: Blood type-specific benefits
C: High caloric intake
D: Universal food recommendations
Correct Answer: B
Explanation: The hypothesis that specific benefits are tied to individual blood types is central to the diet’s appeal.

Disclaimer: Please consult a physician before making any changes to your health regimen.

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