Keto Diet Advanced Applications 4

Question 1

What is the most common electrolyte lost first and in greatest quantity when transitioning to a ketogenic diet?

Accepted Answer

Sodium

Answer

Lowered insulin reduces renal sodium reabsorption, causing rapid urinary sodium loss and the associated 'keto flu' symptoms.

Question 2

Which advanced testing method can directly measure fat versus carbohydrate oxidation during exercise?

Accepted Answer

Indirect calorimetry (metabolic cart) measuring RER

Answer

Indirect calorimetry calculates the respiratory exchange ratio (RER); values near 0.7 indicate fat oxidation and near 1.0 indicate carbohydrate oxidation.

Question 3

How does protein intake affect ketosis, and what is the proposed mechanism?

Accepted Answer

Excess protein can be converted to glucose via gluconeogenesis, potentially reducing ketone production

Answer

Amino acids (especially glucogenic ones) can undergo gluconeogenesis in the liver, raising insulin and glucose, which may suppress ketone output.

Question 4

What is 'protein-sparing modified fast' (PSMF) and how does it relate to ketogenic dieting?

Accepted Answer

A very low-calorie, high-protein, near-zero fat and carb protocol to preserve lean mass during rapid fat loss

Answer

PSMF is an extreme protocol using lean protein sources only, achieving ketosis through severe caloric and fat restriction to maximize fat loss while sparing muscle.

Question 5

Which liver condition is a contraindication for a high-fat ketogenic diet?

Accepted Answer

Acute liver failure or severe hepatic dysfunction

Answer

Severe hepatic dysfunction impairs the liver's ability to perform beta-oxidation and ketogenesis, making high-fat keto dangerous.

Keto Diet Practice Test

Keto Diet Practice Test

Keto Diet Advanced Applications 4