Nutrition & Weight Management Flashcards
7 cards from real ACE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Nutrition & Weight Management flashcards as text
What caloric deficit is generally recommended to produce approximately 1 pound (0.45 kg) of fat loss per week?
Answer: 3,500 kcal/week
One pound of body fat contains approximately 3,500 kcal, so a deficit of 500 kcal/day (3,500 kcal/week) theoretically produces 1 lb of fat loss per week.
Which of the following is a limitation of Body Mass Index (BMI) as a measure of health risk?
Answer: It does not differentiate between fat mass and lean mass
BMI uses only height and weight, so it cannot distinguish between body fat and muscle mass, potentially misclassifying muscular individuals as overweight.
What is the minimum daily caloric intake generally recommended for women to avoid nutrient deficiencies during a weight-loss program?
Answer: 1,200 kcal
Most guidelines recommend women consume no fewer than 1,200 kcal/day to obtain adequate micronutrients; lower intakes risk deficiencies and metabolic adaptation.
Which hormone, produced by adipose tissue, signals satiety to the hypothalamus and helps regulate long-term energy balance?
Answer: Leptin
Leptin is released by fat cells and acts on the hypothalamus to suppress appetite and increase energy expenditure, regulating long-term energy balance.
Metabolic syndrome is diagnosed when a client has at least three of five risk factors including abdominal obesity, elevated triglycerides, low HDL, elevated blood pressure, and which fifth criterion?
Answer: Elevated fasting blood glucose
The five criteria for metabolic syndrome include elevated fasting blood glucose (≥100 mg/dL), abdominal obesity, high triglycerides, low HDL, and high blood pressure.
What physiological mechanism primarily explains why 'yo-yo' dieting often leads to increased body fat percentage over time?
Answer: Caloric restriction causes loss of lean mass, lowering resting metabolic rate
Severe caloric restriction causes loss of lean muscle mass, which lowers resting metabolic rate and makes subsequent weight regain (mostly as fat) more likely.
According to the ACE scope of practice, which of the following is an appropriate nutrition-related action for a personal trainer?
Answer: Sharing general government dietary guidelines such as MyPlate
Personal trainers may share general, publicly available dietary guidelines (e.g., MyPlate, Dietary Guidelines for Americans) but must not provide individualized medical nutrition therapy.