We are pleased to announce that as of March 4, 2025, an updated Rich Text Editor has been introduced in the MyFitnessPal Community. To learn more about the changes, please click here. We look forward to sharing this new feature with you!
Weighing more in the mornings?

SUNHFLEUR
Posts: 1 Member
okay so basically last night i weighed around 45.5 kg and this morning when i woke up to weigh myself i went up by 0.3 kg?? i just want to know what might be the cause of this sudden weight gain. i do drink a lot of water before bed, but i did relieve myself before the weigh-in so im a bit unsure.
2
Replies
-
That's a pretty low weight that you're trying to maintain.
There is an increased chance that, if this weight is too low for your body, you will have additional non fat related (water weight) variation as your body may be under stress and trying to regulate systemic under-nourishment.
Beyond that, the level of variation that you indicate is absolutely NORMAL for any one of us to have! In fact it would be NORMAL to have a MUCH GREATER variation on a day to day basis. Up to several lbs/kgs in fact!
Regardless of the bad things we tend to do to them, our bodies do try to regulate our processes and keep them going--and ourselves continuing to live! There is no timetable that determines at which time of the day you will hit your minimum daily weight; NOR IS THERE A POINT in trying to determine the time of your daily minimum.
What HAS value is looking at your overall weight trend over a period of time. And, especially for women, this would probably require a 4 to 6 week time-frame to be able to account for any cyclical water retention.
Take care of yourself.2 -
You can’t gain weight without some sort of intake. If you drank water after weighing yourself, that could be the cause, but if you weighed after your drink and were higher later, no, you didn’t magically gain weight overnight.
It’s normal for weight to fluctuate from day to day, sometimes by several pounds, due to water, the amount of glycogen stored in muscles, and waste in the body.
However, it’s also normal for scales to be inaccurate to themselves. No digital scale available outside a lab is trustworthy within 2 or 3 percent, it’s a function of the way they are made. Most scales conceal their lack of reliability by not really weighing you every time, but instead having a memory and showing the most recent weight if it’s within a certain time frame and a certain amount of weight. Usually a pound is the weight, and the time may be 10 minutes, sometimes an hour, it depends on the scale. What happened is that you let the scale’s memory expire so it weighed you again, and it gave you a close but not exact number, as it always does. Because you knew logically it couldn’t be accurate, you caught the error this time. If you hadn’t weighed yourself the night before you just would have believed your weight was up.2 -
0.3 kg is not a sudden or unusual gain. Most people’s weight fluctuates several pounds throughout the day. It’s perfectly normal and ok. It’s based on the type and amount food you eat and your body’s normal processes.0
This discussion has been closed.
Categories
- All Categories
- 1.4M Health, Wellness and Goals
- 391.5K Introduce Yourself
- 44K Getting Started
- 260.5K Health and Weight Loss
- 176.1K Food and Nutrition
- 47.5K Recipes
- 232.3K Fitness and Exercise
- 442 Sleep, Mindfulness and Overall Wellness
- 6.4K Goal: Maintaining Weight
- 8.6K Goal: Gaining Weight and Body Building
- 153.1K Motivation and Support
- 8.1K Challenges
- 1.3K Debate Club
- 96.4K Chit-Chat
- 2.5K Fun and Games
- 4K MyFitnessPal Information
- 22 News and Announcements
- 1.2K Feature Suggestions and Ideas
- 2.3K MyFitnessPal Tech Support Questions