Obesity | Overweight

Obesity | Overweight

All about Obesity

obesity and overweight

Obesity Introduction

Obesity is widely regarded as a pandemic, with potentially disastrous complication for human health

Causes of Obesity

  1. Increase Energy Intake
    • Increase protein size
    • Increase snacking
    • Loss of regular meals
    • Increase energy food (mainly fat)
    • Increased affluence
  2. Decreasing Energy Expenditure
    • Increase car ownership
    • Decrease walking
    • Increase automation
    • Decrease manual labour
    • Decrease sports in school
    • Increase time spent on computer
    • Increase central heating
  3. Endocrine Factors
    • Hypothyroidism
    • Cushing's Syndrome
    • Insulinoma
    • Hypothalamic tumors / injury
  4. Medications
    • Atypical antipsychotics (eg. Olanzapine)
    • Sulphonylurease
    • Thiazolidinediones
    • Insulin
    • Corticosteroids
    • Sodium valproate
    • Beta blockers

Complications of Obesity

  1. Associated with Diabetes and Hypertension
    • Coronary heart disease
    • Stroke
    • Diabetes complications
  2. Associated with Liver Fat Accumulation
    • Non-alcoholic steatohepatitis
    • Cirrhosis
  3. Associated with Restricted Ventilation
    • Exertional dyspnoea
    • Obstructive sleep apnoea
    • Obesity hypoventilation syndrome
  4. Associated with Mechanical Effects of Weight
    • Urinary incontinence
    • Osteoarthritis
    • Varicose veins
  5. Associated with Increased Peripheral Steroid Interconversion in Adipose Tissue
    • Hormone dependent cancers (breast, uterus)
    • Polycyclic ovarian syndrome
    • Infertility
    • Hirsutism
  6. Others
    • Psychological morbidity (low self esteem, depression)
    • Socioeconomic disadvantages (low income)
    • Gallstones
    • Colorectal cancer
    • Skin infections (groin and submammary candidiasis)

Management of Obesity or Overweight

  1. Lifestyle Advice
    • Regular eating pattern
    • Maximising physical activity
    • More walking
    • Swimming
    • Avoidance of snacking
    • Regular meals
    • Substitution of sweets with artificial sweeteners
  2. Weight loss Diet
    • Low calorie diet
    • Vitamin supplementation
  3. Drugs
    • Orlistat
  4. Surgery
    • Bariatric Surgery
    • Cosmetic Surgical Procedure
    • Apronectomy: Removal of overhanging abdominal skin
  5. Treatment of additional Risk Factors: eg. smoking, excess alcohol consumption, diabetes mellitus, hypertension, obstructive sleep apnoea, hyperlipidaemia