Yes, Your Weight Swings During Your Period—Here’s the Science (and How to Feel Good Anyway)

It’s not a mystery, and you’re not gaining fat overnight—your jeans just fit tighter the week before your period.

Knowing what’s actually going on in your body during PMS and your period (including why your weight goes up and down) can make a huge difference. It helps explain why FLO PMS vitamins might help with symptoms, shows you what’s normal versus what’s not, and gives you a better handle on all those physical and emotional changes.

Your body goes through tons of changes during your menstrual cycle thanks to all those hormones doing their thing. Let’s look at what’s really happening when your weight bounces around—from hormones messing with water retention to your metabolism shifting gears.

Exploring the Science Behind Menstrual Weight Fluctuations

Ever wonder why the scale goes crazy during your period? It all starts with hormones. Your menstrual cycle has different phases, and each one comes with its own hormone cocktail.

The main culprits are progesterone and estrogen. These hormones affect how your body handles fluids, which is why so many of us deal with water retention during our periods.

During the second half of your cycle, progesterone levels go up and your body starts holding onto water like crazy. That’s when the bloating kicks in and the number on the scale jumps. You might notice your clothes feel tighter and you just feel puffy all over.

Debunking Myths: Is It Just Water Weight?

Sure, it would be nice if we could blame everything on water weight, but there’s more to the story. Water retention is definitely a big player, but it’s not the only thing going on. Your metabolism actually changes throughout your cycle too.

These metabolic shifts affect how your body burns calories and uses nutrients. Plus, there’s all the other stuff that comes into play—like those intense cravings, whether you feel like exercising, and your stress levels. It’s a whole package deal, not just water weight.

Once you understand all these moving parts, the whole thing becomes less mysterious and you can stop beating yourself up about it. When you gain up to 5 pounds during your period, that’s mostly water weight thanks to progesterone—not because you suddenly lost all your willpower.

“Period weight gain of up to 5 lbs is usually so-called water weight, thanks to progesterone, not self-control.”

Understanding Body Changes: PMS and Nutrition

What you eat and how your body reacts during your period are totally connected. PMS can hit you with all sorts of fun symptoms, especially those crazy food cravings and appetite swings. These changes in what you want to eat can really affect your nutrition and how you feel overall.

Eating a balanced diet with all the good stuff your body needs can make a real difference in managing PMS. Some nutrients in PMS vitamins, like vitamin b6, have been shown to help with symptoms. If you pay attention to what you’re eating and maybe add some PMS vitamins to the mix, you might have an easier time with the weight fluctuations.

Tips for Managing Weight Fluctuations During Menstruation

Yes, the weight changes during your period can be annoying, but there are things you can do to feel more balanced. First off, drinking lots of water actually helps with bloating—it sounds backwards, but it helps flush out the extra fluid your body’s holding onto.

Also, eating high potassium foodstuffs like bananas and leafy greens can help counteract all that sodium that makes you bloat. These foods are great for keeping period bloating in check.

Even light exercise like yoga or just going for a walk can help balance your hormones and reduce stress, which might help keep your weight more stable during your period. Staying active regularly is good for both managing your weight and just feeling better overall.

Self-care during Menstrual Period: Nurture Your Body by Cuddling It

When your hormones are doing their monthly roller coaster thing, taking care of yourself is super important. This is the time to be kind to your body and work with it, not against it. Learning to roll with your body’s natural rhythm can actually be pretty empowering.

Do whatever makes you feel good—take a hot bath, try some meditation, or treat yourself to your favorite comfort food. Listen when your body says it needs rest, don’t ignore your emotions, and don’t be afraid to lean on friends when you’re feeling overwhelmed. It’s totally okay to take things slower when your body needs a break.

Navigating Menstrual Weight Fluctuations With Confidence

Those weight changes during your period? Totally normal. They’re just part of how your body works with all those hormones and physical changes happening. Once you understand the science, ditch the myths, and get to know your own patterns, this whole thing becomes way less stressful.

The bottom line is that your body changing during your period is just part of life. When you accept that, you can stop stressing about it so much. Take care of yourself, listen to what your body needs, and you’ll build a much healthier relationship with your body—one where you can handle these monthly changes without freaking out.

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Hannah Longman
Hannah Longman
From fashion school in NYC to the front row, Hannah works to promote fashion and lifestyle as the communications liaison of Fashion Week Online®, responsible for timely communication of press releases and must-see photo sets.

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