Intermittent Fasting Trivia Questions and Answers

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1: What is intermittent fasting?
A: A diet where specific foods are avoided
B: A cycle between voluntary fasting and non-fasting
C: A diet that restricts dairy products only
D: A diet that increases protein intake
Correct Answer: B
Explanation: Intermittent fasting is about alternating between periods of eating and fasting within a defined timeframe.

2: Which method is part of intermittent fasting and involves eating only during specific hours each day?
A: Keto diet
B: Paleo diet
C: Time-restricted eating
D: Mediterranean diet
Correct Answer: C
Explanation: Time-restricted eating limits food consumption to certain hours of the day, to align with circadian rhythms.

3: What is the main focus of the 5:2 diet method in intermittent fasting?
A: Consuming high protein foods
B: Alternating between keto and paleo diets
C: Eating 500-600 calories for two non-consecutive days a week
D: Only eating fruits and vegetables
Correct Answer: C
Explanation: The 5:2 diet involves significantly reducing calorie intake for two days each week but eating normally the other five days.

4: What significant health benefit is intermittent fasting preliminarily linked to?
A: Improved skin health
B: Better eyesight
C: Reduced risk of metabolic syndrome
D: Increased height
Correct Answer: C
Explanation: Research suggests intermittent fasting may help reduce risks associated with metabolic syndrome, including obesity and hypertension.

5: Which religious practice includes fasting similar to intermittent fasting?
A: Diwali fasting in Hinduism
B: Ramadan in Islam
C: Hanukkah fasting in Judaism
D: Christmas fasting in Christianity
Correct Answer: B
Explanation: During Ramadan, Muslims fast from dawn to sunset, resembling intermittent fasting patterns.

6: What did the US National Institute on Aging recommend about intermittent fasting?
A: It’s the best diet for everyone
B: It should be recommended for children
C: There is insufficient evidence to recommend it without consulting a healthcare provider
D: It’s harmful and should be avoided
Correct Answer: C
Explanation: The US National Institute on Aging advises discussing any significant dietary change, like intermittent fasting, with a healthcare provider.

7: What period did early therapeutic intermittent fast studies investigate?
A: 12 to 36 hours
B: 24 to 48 hours
C: 1 to 14 days
D: 7 to 21 days
Correct Answer: C
Explanation: Early studies on intermittent fasting varied from 1 to 14 days in their fasting periods.

8: Which population has intermittent fasting not been comprehensively studied in?
A: Adults
B: Children
C: University students
D: Young professionals
Correct Answer: B
Explanation: There are insufficient studies on the effects of intermittent fasting in children.

9: What is a potential minor effect of short-term intermittent fasting based on preliminary studies?
A: Improved math skills
B: Decreased vision
C: Minor side effects like hunger and irritability
D: Stronger bones
Correct Answer: C
Explanation: Short-term intermittent fasting may produce minor side effects such as hunger, irritability, and dizziness, though these often fade within a month.

10: Which historical time period saw renewed interest in the study of intermittent fasting for obesity treatment?
A: 1800s
B: Early 1900s
C: 1960s
D: 1980s
Correct Answer: C
Explanation: The 1960s saw renewed interest in intermittent fasting following a positive report from researchers like Bloom.

11: What metabolic change might intermittent fasting promote after a certain amount of fasting time?
A: Decreased muscle mass
B: Increased bone density
C: Mobilization of fat into energy
D: Reduced lung capacity
Correct Answer: C
Explanation: Intermittent fasting can lead to a metabolic switch where stored fat is used for energy.

12: What is the primary effect of overnight fasting before exercise?
A: Increased muscle mass
B: Decreased performance in prolonged exercise
C: Enhanced bone strength
D: Improved reflexes
Correct Answer: B
Explanation: Overnight fasting before prolonged exercise can reduce performance despite increased lipolysis.

13: Which diet regimen inspired the popularization of intermittent fasting in the UK and Australia?
A: Atkins diet
B: Vegan diet
C: 5:2 diet
D: South Beach diet
Correct Answer: C
Explanation: The 5:2 diet gained popularity through public figures and media endorsements in the UK and Australia.

14: In which documentary was the 5:2 diet popularized by Michael Mosley?
A: Supersize Me
B: Eat, Fast and Live Longer
C: The Magic Pill
D: Sicko
Correct Answer: B
Explanation: “Eat, Fast and Live Longer” helped bring attention to the 5:2 diet.

15: What is reported as a side effect of Ramadan fasting for diabetics?
A: Improved blood sugar levels
B: Increased risk of hypoglycemia
C: Enhanced immune system
D: Taller stature
Correct Answer: B
Explanation: Diabetics may face increased risks of hypoglycemia during Ramadan fasting.

16: Which religion practices the Black Fast during Lent as a form of intermittent fasting?
A: Islam
B: Buddhism
C: Hinduism
D: Christianity
Correct Answer: D
Explanation: The Black Fast in Christianity involves abstaining from food until sundown during Lent.

17: How does alternate-day fasting impact cardiovascular and metabolic biomarkers?
A: Causes severe deficiency
B: No change at all
C: Improves similar to a calorie restriction diet
D: Decreases healthy cholesterol
Correct Answer: C
Explanation: Alternate-day fasting has been shown to improve cardiovascular and metabolic biomarkers similar to calorie-restriction diets.

18: How does periodic fasting affect chronic pain and mood disorders based on available studies?
A: Significant improvement
B: No change
C: Slight reduction
D: Significant worsening
Correct Answer: C
Explanation: Some small-scale studies suggest that periodic fasting may have a minor positive effect on chronic pain and mood disorders.

19: Which hormone’s secretion is notably influenced by fasting according to studies on circadian rhythms?
A: Insulin
B: Adrenaline
C: Melatonin
D: Thyroxine
Correct Answer: C
Explanation: Melatonin secretion, influenced by darkness and sleep, affects glucose metabolism and other metabolic processes.

20: Why is intermittent fasting not recommended for non-overweight individuals, according to the National Institute on Aging?
A: It causes rapid weight gain
B: It is highly dangerous
C: Due to insufficient evidence of its effectiveness and safety
D: It is too complicated
Correct Answer: C
Explanation: There is uncertainty about intermittent fasting’s safety and effectiveness for non-overweight individuals.

21: Who should generally avoid intermittent fasting according to many health guidelines?
A: Young adults
B: Overweight individuals
C: Pregnant or breastfeeding women
D: Middle-aged adults
Correct Answer: C
Explanation: Pregnant and breastfeeding women, among other vulnerable groups, are often advised against intermittent fasting.

22: What do early studies suggest about intermittent fasting and athletic performance?
A: It improves performance drastically
B: It has no effect on performance
C: Does not benefit and may reduce prolonged exercise performance
D: It enhances mental agility
Correct Answer: C
Explanation: While lipolysis is increased, athletic performance especially in long-duration activities may diminishe under fasting conditions.

23: What aspect of intermittent fasting is considered a new target for managing weight control strategies?
A: Nitrogen balance
B: Meal timing
C: Food variety
D: Water intake
Correct Answer: B
Explanation: Meal timing has emerged as a potential new focus in weight management strategies.

24: What significant effect does intermittent fasting have on glucose metabolism when timed with circadian rhythms?
A: Increases glucose levels
B: Decreases glucose levels
C: Neutral effect
D: Variable effect
Correct Answer: B
Explanation: Aligning food intake with circadian rhythms can optimize glucose levels and metabolism.

25: What significant metabolic change occurs after 12 to 36 hours of fasting?
A: Increase in protein synthesis
B: Liver glucose reserves deplete
C: Enhanced absorption of nutrients
D: Improved lung function
Correct Answer: B
Explanation: After 12 to 36 hours of fasting, the body’s liver glucose reserves are depleted which then shifts to using other fuels like fat.

26: What is a common minor side effect during the early stages of intermittent fasting?
A: Improved mood
B: Feelings of hunger and irritability
C: Enhanced focus
D: Stronger bones
Correct Answer: B
Explanation: Initial stages of intermittent fasting can lead to hunger, irritability, and other minor side effects.

27: What type of fasting involves complete alternate-day food restriction?
A: Partial daily fasting
B: 5:2 diet
C: Total intermittent energy restriction
D: Prolonged weekend fasting
Correct Answer: C
Explanation: Complete alternate-day fasting involves not consuming any calories on the fasting days.

28: What is one way intermittent fasting and Ramadan fasting differ?
A: Intermittent fasting forbids all liquid intake
B: Ramadan fasting includes drinking water
C: Intermittent fasting allows meals at night
D: Ramadan fasting disallows fluids during the fasting period
Correct Answer: D
Explanation: Unlike some forms of intermittent fasting, Ramadan disallows fluids during the daily fast period.

29: How long do the effects of weight loss observed during Ramadan last according to studies?
A: Long-term retention
B: No weight loss observed
C: Regained within about two weeks
D: Permanent weight loss
Correct Answer: C
Explanation: Weight loss achieved during Ramadan is typically regained within about two weeks after the fasting period ends.

30: What effect does intermittent fasting have on choledocholithiasis?
A: Increases occurrence
B: Decreases occurrence
C: No significant effect
D: Increased healing
Correct Answer: A
Explanation: While this is a trick question; choledocholithiasis is not directly discussed in the context of intermittent fasting in the provided information.

31: What kind of fasting regimen might be harmful for premature infants?
A: Continuous feeding
B: Intermittent feeding
C: Exclusive breastfeeding
D: Formula feeding
Correct Answer: B
Explanation: Although hypothesized to help, intermittent feeding still needs more study for premature infants.

32: Which public figure helped popularize intermittent fasting through media?
A: Oprah Winfrey
B: Michael Mosley
C: Tony Robbins
D: Mark Cuban
Correct Answer: B
Explanation: Michael Mosley significantly contributed to the popularity of intermittent fasting, particularly through the 5:2 diet.

33: How does the American Heart Association currently view the heart health benefits of intermittent fasting?
A: Highly recommended for heart health
B: No good evidence yet
C: Strongly opposed
D: Particularly beneficial for the elderly
Correct Answer: B
Explanation: The AHA states that there is no good evidence supporting heart health benefits from intermittent fasting at present.

34: What is a notable effect of water fasting longer than 24 hours, also known as periodic fasting?
A: Development of new muscle tissues
B: Longer-lasting energy bursts
C: Higher risk of nutrient deficiencies
D: Increased cognitive abilities
Correct Answer: C
Explanation: Periodic fasting can lead to nutrient deficiencies due to prolonged avoidance of food.

35: Which population may be negatively impacted by intermittent fasting?
A: University students
B: Middle-aged men
C: Children and elderly
D: Office workers
Correct Answer: C
Explanation: Intermittent fasting is not advised for children, the elderly, or underweight individuals due to potential harm.

36: What is crucial for the potential effectiveness and maintenance of benefits from intermittent fasting?
A: Varied meal content
B: Tolerance
C: Frequency of meals
D: Type of vegetables eaten
Correct Answer: B
Explanation: Tolerance to the regimen is essential for sustaining the potential benefits from intermittent fasting.

37: How is body weight homeostasis described in relation to intermittent fasting?
A: Perfect at correcting calorie changes
B: Cannot correct energetic errors precisely in the short term
C: Most effective method for energy balance
D: Completely eliminates obesity risk
Correct Answer: B
Explanation: Body weight homeostasis struggles to make precise corrections for calorie imbalances over short periods.

38: What feeding scheme besides intermittent fasting is under study for possible benefits?
A: Hypocaloric feeding
B: High carb feeding
C: Regular meal intervals
D: Exclusive protein diets
Correct Answer: A
Explanation: Hypocaloric feeding is another diet regimen being studied for its potential benefits.

39: What is one adverse side effect common during the initial stages of intermittent fasting?
A: Hyperactivity
B: Continuous feelings of hunger
C: Excessive weight gain
D: Enhanced vision
Correct Answer: B
Explanation: Continuous feelings of hunger are a common side effect initially faced in intermittent fasting.

40: What is the “metabolic switch” in the context of intermittent fasting?
A: Switching from carbs to proteins
B: Transition to using fat-derived ketones for energy
C: Increased sugar absorption
D: Improved digestion
Correct Answer: B
Explanation: The “metabolic switch” refers to the body’s transition from using glucose to fat-derived ketones for energy during fasting.

41: What has preliminary research indicated about the eating window in intermittent fasting?
A: It should be during daylight hours
B: It matches nighttime hours
C: Variable effects on health
D: Always harmful
Correct Answer: A
Explanation: Eating during daylight hours aligns with circadian rhythms and may enhance metabolic health.

42: What role does the hormone glucagon play in the fasting states?
A: Reduces blood pressure
B: Secreted to utilize liver glucose reserves
C: Increases protein intake
D: Diminishes eyesight
Correct Answer: B
Explanation: During fasting, glucagon secretion helps the body use liver glucose reserves.

43: Why is intermittent fasting advised cautiously within specific populations?
A: Possible health risks
B: General inefficacy
C: Lack of interest
D: Increased appetite
Correct Answer: A
Explanation: Vulnerable groups like pregnant women, children, and the elderly should proceed with caution due to potential health risks.

44: Which diet became particularly popular in Silicon Valley, California, by 2018?
A: Mediterranean diet
B: Atkins diet
C: Intermittent fasting
D: Vegan diet
Correct Answer: C
Explanation: Intermittent fasting became a trend among tech professionals in Silicon Valley.

45: What term describes the increase of fat-derived ketones stored during fasting?
A: Protein synthesis
B: Lipid mobilization
C: Calcium absorption
D: Iron storage
Correct Answer: B
Explanation: Lipid mobilization refers to fats being used for energy, producing fat-derived ketones during fasting.

46: What do drop-out rates from intermittent fasting studies suggest?
A: Consistently high adherence
B: Varied levels of adherence
C: Universal disinterest
D: Exclusive support
Correct Answer: B
Explanation: Drop-out rates from intermittent fasting trials vary widely, indicating differing levels of adherence.

47: What positive changes are linked to circadian rhythm-aligned eating patterns?
A: Heightened taste
B: Optimized glucose metabolism
C: Enhanced temperature regulation
D: Improved auditory sense
Correct Answer: B
Explanation: Eating in alignment with circadian rhythms can positively influence glucose metabolism and overall metabolic health.

48: What fasting method involves reducing caloric intake to 25% of usual needs on fasting days?
A: Complete alternate-day fasting
B: Modified alternate-day fasting
C: Periodic fasting
D: Prolonged fasting
Correct Answer: B
Explanation: Modified alternate-day fasting limits intake to 25% of normal caloric needs on fasting days.

49: What is a common outcome from intermittent fasting for healthy weight maintenance?
A: Significant fat gain
B: Effective weight loss
C: Decreased immunity
D: Increased bone density
Correct Answer: B
Explanation: Intermittent fasting shows success in helping individuals maintain or lose weight effectively.

50: What is one negative effect noted for pregnant women practicing Ramadan fasting?
A: Increased energy
B: Reduced height
C: Risk of inducing labor
D: Enhanced digestive ability
Correct Answer: C
Explanation: Pregnant women fasting during Ramadan may face higher risks of preterm labor.

51: During which festival might Hindus practice fasting similar to intermittent fasting?
A: Christmas
B: Diwali
C: Thanksgiving
D: Easter
Correct Answer: B
Explanation: Diwali includes fasting that can resemble intermittent fasting practices.

52: What is a potential downside of the strict diet commercialization of intermittent fasting?
A: Increased health risks
B: Costly without scientific backing
C: Reduced food variety
D: Enhanced appetite
Correct Answer: B
Explanation: Some commercialized intermittent fasting products can be expensive and lack scientific validation.

53: What biomarker is positively impacted by Ramadan fasting according to some studies?
A: Increased blood pressure
B: Higher cholesterol levels
C: Decreased LDL cholesterol levels
D: Higher glycogen stores
Correct Answer: C
Explanation: Ramadan fasting has been associated with a decrease in LDL cholesterol levels.

54: Which practice uses an 8–12 hour eating window aligning with daylight hours?
A: Weekend fasting
B: Partial daily fasting
C: Prolonged meal intervals
D: Time-restricted eating
Correct Answer: D
Explanation: Time-restricted eating confines calorie intake to a specific window, typically aligned with daylight.

55: How does modified alternate-day fasting define its caloric intake on fasting days?
A: No restriction
B: Up to 50% of daily needs
C: Less than 25% of daily needs
D: Exactly 1000 calories
Correct Answer: C
Explanation: Modified alternate-day fasting allows for up to 25% of daily caloric needs on fasting days.

56: What negative side effect might children experience if subjected to intermittent fasting?
A: Improved muscle mass
B: Significant nutrient deficiencies
C: Enhanced cognitive performance
D: Increased physical stamina
Correct Answer: B
Explanation: Children are at risk for serious nutrient deficiencies if they follow intermittent fasting.

57: What health behavior change has Ramadan fasting shown among university students, according to reviews?
A: Increased laziness
B: Elevated smoking rates
C: Reduction in smoking rates
D: Higher alcohol consumption
Correct Answer: C
Explanation: Ramadan fasting was noted for reducing smoking rates by more than 50% among university students.

58: What is a documented health risk of water fasting beyond 24 hours?
A: Strengthened immune response
B: Elevated heart function
C: Nutrient deficiencies
D: Increased fertility
Correct Answer: C
Explanation: Extended water fasting can lead to significant nutrient deficiencies.

59: What did the American Diabetes Association conclude about intermittent fasting for diabetes management?
A: Universally recommended
B: Harmful across all cases
C: Limited evidence available to recommend
D: Exclusive for Type 2 Diabetes
Correct Answer: C
Explanation: There is limited evidence, so no specific recommendations are made without more research.

60: In which year did Mark Mattson co-author an article that documented the 5:2 diet?
A: 1999
B: 2005
C: 2011
D: 2018
Correct Answer: C
Explanation: Mark Mattson co-authored an article in 2011 that documented the 5:2 diet.

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

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