chevron-right user search instagram twitter facebook-f snapchat youtube number 1 number 2 number 3 number 4

Why does my weight fluctuate so much?

Whether you’re conscious of your diet and exercise regime or not, weight fluctuations happen to most of us every day, for the most minor of reasons. However, it can initially be concerning if you hop on the scales in the morning and see one number, then hop on at night and see something 5lbs heavier or lighter.

To put your mind at ease and remind you that the numbers on a scale are not the be all and end all, here are five of the most common reasons for weight fluctuations:

1. You’re retaining water

Excess water hanging around in your system can trick you into thinking you’ve gained weight. Foods that are high in carbs and salt can make you retain water, as can the hormonal changes right before your period, so a lot of the time a dramatic weight increase in the space of a day or two is actually just water. Fear not: you will pee or sweat it out. If it’s really bothering you, make sure you’re doing aerobic exercise 3-4 times a week, and try not to consume carbs or salt excessively. In extreme cases and if the water retention is causing you discomfort, consult your doctor, who may be able to prescribe something to help.

2. You’ve just eaten

Regardless of how healthy your dinner was, if you step on the scales immediately after eating, it’s going to appear like you’ve gained weight. The food is still sitting in your stomach, you haven’t fully digested it yet, and so it appears on the scales as extra weight. This will soon be adjusted once you’ve pooed (sorry), which brings us to…

3. You’re constipated

If you haven’t been able to poop, you’ll be hanging on to all that food you’ve consumed since your last successful bathroom trip, so you’ll probably see a higher number on the scales. But, worse, you’re probably feeling pretty uncomfortable. Make sure you’re getting enough fibre and staying hydrated, and your bowels – as well as your weight – should regulate.

4. You’ve just exercised

Immediately after you’ve exercised, if you haven’t rehydrated, your weight can drop a pound or two. This is due to a loss in water, so make sure you’re drinking plenty and don’t risk becoming dehydrated.

5. You’re weighing yourself too often

All of the above weight fluctuations can happen in a day, or from one day to the next, and you probably wouldn’t notice them so much if you weren’t hopping on the scales too much. If you are in the habit of weighing yourself, cut it to once a week, and you’ll probably see a much steadier maintenance of your body weight. Life is too short to spend it on the scales.

And remember, if you’re gaining or losing a significant amount of weight without any real explanation, always consult your doctor for advice.

It’s time you started celebrating your period, guys. Sign up to bettybox RN and get all your tampons and pads, beauty products, sweet treats and loads more cool stuff delivered to your door, every single month. We know. It’s totally awesome. 

Image: Katie Edmunds

Sign up for betty latest

Sign up to our fab betty email newsletter for:

  • A fun and refreshingly honest chat on all things periods and puberty.
  • All things lols, fun and style from our betty hub.
  • Exclusive offers on your favourite brands from the betty box.
Parent Under 18

*By clicking 'Sign Up’, you are indicating that you are aged over 13 years old and have read and agreed to the Terms of Service and Privacy Policy. You can unsubscribe from emails at any time. We’ll always treat your personal details the utmost care, for all information on how and why we use your data see our Privacy Policy

X