The Science Behind Diets: Set Point Theory and Metabolic Flexibility

Which diet involves eating foods that are purple in color?

• Low-fat diet

• Keto diet

• Intermittent fasting

• Purple diet

What is the main characteristic of the keto diet?

• Fasting for long periods

• High carbohydrate intake

• Eating only purple foods

• High fat, low carb intake

What is a common consequence of crash dieting?

• Permanent weight loss

• Improved mood

• Increased metabolism

• Rebound weight gain

What happens to metabolism after a crash diet when normal eating resumes?

• It stabilizes immediately

• It speeds up

• It becomes more flexible

• It remains suppressed

What is metabolic flexibility?

• The ability to lose weight quickly

• The ability to maintain a constant weight

• The ability to eat anything without gaining weight

• The ability to switch between burning carbohydrates and fats

Why do restrictive meal plans often fail?

• They are too easy to follow

• They increase calorie intake

• They can impede calorie burning

• They are too flexible

What does the set point theory suggest about body weight?

• It is determined by exercise habits

• It is a natural range the body tries to maintain

• It is fixed and cannot change

• It is entirely determined by diet