Which of the following metabolic disorders is characterized by an inability to break down galactose, a sugar found in milk and other dairy products?

A Phenylketonuria
B Galactosemia ✓
C Lactose intolerance
D Maple syrup urine disease

Explanation

Galactosemia is a genetic disorder that affects the body's ability to metabolize galactose, leading to serious health complications if left untreated.

Mnemonic

Galactosemia = Galactose +emia = sugar in blood

Source

National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) reports
Metabolic and Nutritional Disorders Metabolic Disorders Carbohydrate Metabolism Disorders Medium MEDICAL Confidence: high