What conditions contraindicate a ketogenic diet?

• A. Fat oxidation disorders
• B. Well-controlled type 2 diabetes
• C. Mild iron deficiency
• D. Low blood pressure

Answer: (A)

Ketogenic diets rely on fat as the primary fuel and ketone production to meet energy needs when carbohydrate intake is low. In fatty acid oxidation disorders, the body cannot properly break down fatty acids to generate energy. When carbohydrate intake is restricted and fat becomes the main energy source, these individuals can’t produce enough usable energy, leading to dangerous hypoglycemia, energy deficits, liver stress, and potential metabolic crises. Because the diet depends on intact fat metabolism, these conditions are contraindications.

The other scenarios don’t inherently prevent ketosis. Well-controlled type 2 diabetes may be managed on a ketogenic plan under medical supervision. Mild iron deficiency doesn’t impair fat metabolism, and low blood pressure isn’t a specific contraindication, though it warrants monitoring.