Fat Burning Fat Burning Nutrition and Diet 2 — Questions and Answers
Question 1: A low-carbohydrate, high-fat (ketogenic) diet promotes fat burning by inducing which metabolic state?
- Ketosis (Correct answer)
- Glycolysis
- Gluconeogenesis dominance
- Hyperinsulinemia
Correct answer: Ketosis
Ketosis occurs when carbohydrate intake is very low, forcing the liver to produce ketone bodies from fat as the primary energy source.
Question 2: Which nutrient, found in green tea and coffee, can modestly increase metabolic rate and enhance fat oxidation?
- Caffeine (Correct answer)
- Vitamin C
- Calcium
- Zinc
Correct answer: Caffeine
Caffeine stimulates the central nervous system, increases epinephrine levels, and promotes lipolysis, modestly boosting metabolic rate and fat oxidation.
Question 3: High-fiber foods support fat loss efforts primarily because they:
- Increase satiety and slow gastric emptying (Correct answer)
- Raise insulin levels sharply
- Convert directly to glycogen
- Suppress thermogenesis
Correct answer: Increase satiety and slow gastric emptying
Dietary fiber slows digestion and gastric emptying, prolonging fullness and reducing overall caloric intake, which supports a fat-loss caloric deficit.
Question 4: Excess dietary sugar is most likely stored as fat through which metabolic pathway when glycogen stores are full?
- De novo lipogenesis (Correct answer)
- Beta-oxidation
- Ketogenesis
- Oxidative phosphorylation
Correct answer: De novo lipogenesis
When glycogen stores are saturated, excess carbohydrates are converted to fat through de novo lipogenesis, primarily in the liver.
Question 5: Which mineral, commonly deficient in Americans, is involved in over 300 enzymatic reactions and may support insulin sensitivity and fat metabolism?
- Magnesium (Correct answer)
- Iron
- Potassium
- Sodium
Correct answer: Magnesium
Magnesium plays a role in glucose metabolism and insulin signaling; deficiency is associated with impaired metabolic function and increased fat storage risk.
Question 6: Protein supports fat loss partially by preserving lean muscle mass during a caloric deficit, which matters because muscle tissue:
- Increases resting metabolic rate (Correct answer)
- Stores glycogen more efficiently than fat
- Requires no energy to maintain
- Converts fat directly to ATP
Correct answer: Increases resting metabolic rate
Skeletal muscle is metabolically active tissue that increases resting metabolic rate, meaning more calories are burned at rest when muscle mass is preserved.
Fat Burning Fat Burning Nutrition and Diet 2
A low-carbohydrate, high-fat (ketogenic) diet promotes fat burning by inducing which metabolic state?