Food Diary Helps Cut Pounds
Dieting women who kept a diligent food diary lost more weight than other women in a cohort. Skipping meals and eating out slowed weight loss. Katherine Harmon reports

SUBSCRIBE TO 60-Second Health
“Dear diary, for breakfast today I had a strawberry-banana smoothie, I snacked on cherries and almonds, and I ate a chicken-avocado wrap for lunch.”
I was just working on my food journal for the day. It might not be the most salacious diary, but new research suggests that keeping one of these is an important way to drop pounds—and keep them away.
Researchers followed 123 overweight or obese postmenopausal women for a year as they attempted to lose weight and keep it off. The women used a low-calorie diet combined with exercise. And the subjects who most diligently tracked their eating in food journals lost the most weight. The findings are in the Journal of the Academy of Nutrition and Dietetics. [Angela Kong et al., "Self-Monitoring and Eating-Related Behaviors Are Associated with 12-Month Weight Loss in Postmenopausal Overweight-to-Obese Women"]
On supporting science journalism
If you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.
Skipping meals led to losing less weight on average—possibly because extreme hunger can lead to binging. And eating out for lunch at least once a week also meant less success losing weight. So to lose pounds and keep them off: pack a lunch, don't skip meals and write it down—or use an app to track your eating.
—Katherine Harmon
[The above text is a transcript of this podcast.]
Subscribe to Support Independent Journalism
Great science journalism requires human expertise, time, effort and creativity. And it costs money. That’s why I and the journalists here at Scientific American hope you’ll join our community.
When you subscribe, you are supporting staff and freelance journalists who are passionate about telling science stories that are true, important and compelling. Our editors and reporters are often experts in their fields, which means they understand the nuances of big discoveries and can untangle the breakthroughs from the hype. With a subscription, you are also supporting rigorous fact-checking to ensure the words we publish are precise and accurate. And you’re supporting original illustrations, graphics and photos that bring you closer to an advanced laboratory, an ice sheet in Antarctica or a space mission in orbit. You’re helping us craft other types of high-quality journalism as well: Our newsletters are carefully written, edited and curated by staffers you have or will come to know and love. Our Science Quickly podcast is based on original reporting, collaboration with editors and scientists and exacting production.
Subscriptions keep this engine running so we can continue to deliver thoughtful, rigorous and independent science journalism to you. In an era of viral misinformation, this work is crucial. If you value what we do, I hope you’ll consider joining us as a subscriber