Fitness guru says you'll always weigh more on a Monday for surprising reason
![Fitness guru says you'll always weigh more on a Monday for surprising reason](https://i2-prod.mirror.co.uk/incoming/article33225977.ece/ALTERNATES/s615/0_Gym-babe-takes-pics-from-different-angles-to-show-how-bodies-change-within-seconds.jpg)
Fitness fanatic Lizzy High, who is known as Liz Bites Back on Instagram, explained the reason why you often weigh more on a Monday - and it's not because you've pilled on the pounds