Harvard Health Letter

In Brief: Low-carb dieting: Slimmer but sadder?

Research suggests that a diet low in carbohydrates could lead to lower levels of serotonin in the body, which in turn may cause an increase in bad moods.
To continue reading this article, you must login.
  • Research health conditions
  • Check your symptoms
  • Prepare for a doctor's visit or test
  • Find the best treatments and procedures for you
  • Explore options for better nutrition and exercise
Learn more about the many benefits and features of joining Harvard Health Online »