- Adrenoleukodystrophy see Leukodystrophies
- Amino Acid Metabolism Disorders
- Amyloidosis
- Bariatric Surgery see Weight Loss Surgery
- Blood Glucose
- Blood Sugar see Blood Glucose
- BMI see Body Weight
- Body Weight
- Brain Disorders, Inborn Genetic see Genetic Brain Disorders
- Canavan Disease see Leukodystrophies
- Carbohydrate Metabolism Disorders
- Celiac Disease
- Childhood Obesity see Obesity in Children
- Copper Storage Disease see Wilson Disease
- Dehydration
- Diabetes
- Diabetes Complications
- Diabetes Insipidus
- Diabetes Mellitus see Diabetes
- Gastric Bypass see Weight Loss Surgery
- Gastroplasty see Weight Loss Surgery
- Gaucher Disease
- Genetic Brain Disorders
- Glucose see Blood Glucose
- Gluten Intolerance see Celiac Disease
- Gluten-Sensitive Enteropathy see Celiac Disease
- Hemochromatosis
- Hepatolenticular Degeneration see Wilson Disease
- High Blood Glucose see Hyperglycemia
- High Blood Sugar see Hyperglycemia
- Hyperglycemia
- Hypoglycemia
- Insulin Resistance see Metabolic Syndrome
- Iron Overload Disease see Hemochromatosis
- Lactose Intolerance
- Leukodystrophies
- Lipid Metabolism Disorders
- Low Blood Sugar see Hypoglycemia
- Maple Syrup Urine Disease see Genetic Brain Disorders
- Metabolic Disorders
- Metabolic Syndrome
- Milk Intolerance see Lactose Intolerance
- Mitochondrial Diseases
- Mucolipidoses see Metabolic Disorders
- Mucopolysaccharidoses see Carbohydrate Metabolism Disorders
- Niemann-Pick Disease see Genetic Brain Disorders
- Nontropical Sprue see Celiac Disease
- Obesity
- Obesity in Children
- Obesity Surgery see Weight Loss Surgery
- Overweight see Body Weight; Obesity
- Phenylketonuria
- PKU see Phenylketonuria
- Rickets
- Stomach Stapling see Weight Loss Surgery
- Sugar Diabetes see Diabetes
- Syndrome X (Metabolic) see Metabolic Syndrome
- Thirst see Dehydration
- Underweight see Body Weight
- Weight Loss Surgery
- Wilson Disease