Keep Your New Weight: Why Journaling Works
A study of 1,700 overweight men and women showed that those who kept a regular food and exercise journal, along with eating a low-fat diet and exercising 30 minutes per day, lost 18 pounds in 20 weeks, compared to a nine-pound loss among those who did no journaling.
Researchers believe food journals work because:
One of the lessons many people take from their experience of food journaling is the difference between a serving size as printed on a nutrition label and the amount of a food that they consider to be a helping. For example, a serving of pasta is about a half a cup, so you may be surprised when you start keeping your food journal that your usual helping of spaghetti could be as many as four servings.
Read full article: http://www.everydayhealth.com/weight/journaling-your-weight-loss.aspx?xid=nl_EverydayHealthHeartHealth_20100314