The body can naturally fluctuate by several pounds from day to day, due mainly to changes in your hydration levels.
But 12 lbs in a day certainly is more than just hydration level changes.
My guess is that changes of that amount are due to an uneven floor, and the scale being tilted a slightly different way each time. Position the scale so it is firm and there is no 'wobble' (some scales have adjustable feet), and perhaps mark the floor with a little bit of tape to ensure the scale in is EXACTLY the same spot each time.
But even if you can eliminate this uneven floor issue, daily weigh-in are really going to tell you more about hydration level changes, than about dat loss.
Measuring yourself with the tape is actually a better way to track your progress than the scale.
Fitness Minutes: (16,343)
2,273 9/11/13 11:35 P
I have found that with digital scales there is a tendency for inaccuracy at times. The manual scales are probably more accurate but I find that they are difficult to read.
9/11/13 11:24 P
This morning, my scale weighed me at 185. That is quite a lot higher than it was a couple days ago, so I stepped up again this evening out of curiosity. Now the scale reads 173, which is much closer to the prior day's. The scale is only a couple months old, and I make sure it is balanced at 0 each time (no batteries to replace or anything). Has anyone else had this happen, or can anyone explain what's going on? It's entirely implausible that I would lose 12 pounds in one day, of course.
SparkPeople, SparkCoach, SparkPages, SparkPoints, SparkDiet, SparkAmerica, SparkRecipes, DailySpark, and other marks are trademarks of SparkPeople, Inc. All Rights Reserved. No portion of this website can be used without the permission of SparkPeople or its authorized affiliates.
SPARKPEOPLE is a registered trademark of SparkPeople, Inc. in the United States, European Union, Canada, and Australia. All rights reserved.