Eating junk food sparks cravings 'just like drugs'
Junk food really could be addictive and stimulate cravings in much the same way as an illicit drug, a study has shown.
The findings suggest that limiting "high-glycaemic" carbohydrates that cause blood sugar to surge could help curb over-eating and obesity.
Twelve men were given test meals designed as milk shakes that tasted the same and were matched for calories.
One shake contained high-glycaemic index (GI) carbohydrates, often found in junk food, while the other was made with low GI carbohydrates.
Consumption of the high GI drink was followed by a surge in blood sugar levels followed by a sharp crash four hours later, which was associated with excessive hunger.
Lead scientist Dr David Ludwig said: "The findings suggest that limiting high-glycaemic index carbohydrates like white bread and potatoes could help obese individuals reduce cravings."