Portage Learning Nutrition BIOD 121 Unit 3
questions with verified answers
Ans✓✓✓
A 47 year old female has come to the clinic for help losing weight. For the past 4
months she has worked to eat only low-fat and fat-free foods, but she has not lost
weight. Why might consuming fat-free and low-fat foods not lead to weight loss?
Ans✓✓✓ The calorie difference between low-fat and its regular counterpart can
be marginal as extra sugar (or salt) can be used to improve the taste. Additionally,
the lack of fat or simply the knowledge that the product is lower in calories, may
lead you to actually eat more of a low-fat product. The end result is often the
consumption of more calories than if you had just ingested the regular product
initially.
A diet invented by two nutritionists in the UK is called the Sirtfood Diet. It has
been touted by celebrities like Pippa Middleton and the singer Adele. The basis of
the diet is to eat a group of foods the nutritionists' call "sirtfoods" because they
believe they will activate "skinny genes" that mimic the effects of fasting and
exercise. Not only will people on the diet lose weight quickly, but it will increase
energy, health and decrease inflammation in the body. Along with eating the "sirt
foods", dieters must restrict calories 1,000 for the majority of days in a week by
drinking green juice (dieters will need a good juicer that generally costs about
$100) and eating 1 meal a day. The other days, dieters must still replace 1 meal a
day with green juice and only eat up to 1,500 calories per day.
Part 1: Is the Sirtfood diet a fad diet? List at least 3 pieces of evidence to support
your answer.
Part 2: Based on the Ans✓✓✓ Part 1: Yes, options for evidence include: quick
weight loss, celebrity endorsement, limited selection of foods, expensive (juicer
, necessary), cure all (energy, better health, decreased inflammation), does not
recognize role of exercise
Part 2: Novelty - it promotes specific foods for weight loss that are not
scientifically proven.
All of the following can be used to determine a person's body fat percentage
except
Calipers
Underwater weighing
Electrical resistance
Direct calorimetry Ans✓✓✓ Direct calorimetry
Along with aerobic exercise, list the 2 other categories of physical exercise shown
to be beneficial to overall health. Ans✓✓✓ Resistance (or strength) training
Stretching
Along with keeping a food journal and measuring portion sizes, what are at least 2
more recommended behaviors for controlling calories? (Note behavior
modification is not to be listed as a recommendation) Ans✓✓✓ Nutrition label
reading
limiting high-fat foods
limiting empty calorie foods/foods high in sugar
amount of energy burned via the body regulating body temperature and activities
like fidgeting, maintaining body posture and shivering Ans✓✓✓ thermogenesis
questions with verified answers
Ans✓✓✓
A 47 year old female has come to the clinic for help losing weight. For the past 4
months she has worked to eat only low-fat and fat-free foods, but she has not lost
weight. Why might consuming fat-free and low-fat foods not lead to weight loss?
Ans✓✓✓ The calorie difference between low-fat and its regular counterpart can
be marginal as extra sugar (or salt) can be used to improve the taste. Additionally,
the lack of fat or simply the knowledge that the product is lower in calories, may
lead you to actually eat more of a low-fat product. The end result is often the
consumption of more calories than if you had just ingested the regular product
initially.
A diet invented by two nutritionists in the UK is called the Sirtfood Diet. It has
been touted by celebrities like Pippa Middleton and the singer Adele. The basis of
the diet is to eat a group of foods the nutritionists' call "sirtfoods" because they
believe they will activate "skinny genes" that mimic the effects of fasting and
exercise. Not only will people on the diet lose weight quickly, but it will increase
energy, health and decrease inflammation in the body. Along with eating the "sirt
foods", dieters must restrict calories 1,000 for the majority of days in a week by
drinking green juice (dieters will need a good juicer that generally costs about
$100) and eating 1 meal a day. The other days, dieters must still replace 1 meal a
day with green juice and only eat up to 1,500 calories per day.
Part 1: Is the Sirtfood diet a fad diet? List at least 3 pieces of evidence to support
your answer.
Part 2: Based on the Ans✓✓✓ Part 1: Yes, options for evidence include: quick
weight loss, celebrity endorsement, limited selection of foods, expensive (juicer
, necessary), cure all (energy, better health, decreased inflammation), does not
recognize role of exercise
Part 2: Novelty - it promotes specific foods for weight loss that are not
scientifically proven.
All of the following can be used to determine a person's body fat percentage
except
Calipers
Underwater weighing
Electrical resistance
Direct calorimetry Ans✓✓✓ Direct calorimetry
Along with aerobic exercise, list the 2 other categories of physical exercise shown
to be beneficial to overall health. Ans✓✓✓ Resistance (or strength) training
Stretching
Along with keeping a food journal and measuring portion sizes, what are at least 2
more recommended behaviors for controlling calories? (Note behavior
modification is not to be listed as a recommendation) Ans✓✓✓ Nutrition label
reading
limiting high-fat foods
limiting empty calorie foods/foods high in sugar
amount of energy burned via the body regulating body temperature and activities
like fidgeting, maintaining body posture and shivering Ans✓✓✓ thermogenesis
