Why Is it Harder to Lose Weight the Second Week of a Diet?

The second week of a weight loss diet may be discouraging if you expect to lose as much weight as you did in the first week. It's not that your diet has stopped working, it's because you drop excess fluid in the first week or so, which can lead to unrealistic expectations for the rest of your diet. The good part is that after that initial drop, what you're losing is body fat -- and that's your goal.

A woman is training with dumbbells. Credit: darkbird77/iStock/Getty Images

It's Water, Not Fat

When you first start a diet and reduce your calories, your body reacts by using up the glycogen stored in your muscles and liver. Under normal circumstances, glycogen is your protection against a dramatic drop in blood sugar if you have to go hungry for a while. Glycogen retains water, however. When you burn up the glycogen, the water must be excreted, leading to a dramatic but temporary change in the scale. Set realistic weight loss goals, such as one to two pounds a week, to prevent yourself from getting discouraged after that first week when the pounds seemed to melt away.

Load Comments

Copyright © 2019 Leaf Group Ltd. Use of this web site constitutes acceptance of the LIVESTRONG.COM Terms of Use , Privacy Policy and Copyright Policy . The material appearing on LIVESTRONG.COM is for educational use only. It should not be used as a substitute for professional medical advice, diagnosis or treatment. LIVESTRONG is a registered trademark of the LIVESTRONG Foundation. The LIVESTRONG Foundation and LIVESTRONG.COM do not endorse any of the products or services that are advertised on the web site. Moreover, we do not select every advertiser or advertisement that appears on the web site-many of the advertisements are served by third party advertising companies.