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You’re dragging yourself through the day. Coffee isn’t helping. Your motivation has disappeared and all you want is to crawl into bed with some chocolate and no responsibilities.
If this feels familiar in the week before your period, you’re definitely not alone.
Fatigue is one of the most common PMS symptoms, but it’s not just about hormones. Often, your iron and magnesium levels are playing a big role too.
Let’s unpack why.
Right before your period starts, your body goes through a wave of hormonal changes. Estrogen drops, progesterone peaks, and inflammation can rise. All of that can affect your sleep, energy levels, and overall mood.
But there’s something else going on too.
Your body is getting ready to lose blood, and that means it’s also pulling from your iron stores. If your iron is already low (which is super common if you’re menstruating), this extra demand can leave you feeling totally wiped out.
Magnesium plays a huge role in energy production, mood regulation, muscle relaxation and sleep quality. Right before your period, your magnesium levels can drop, making you feel even more tired, irritable, and out of balance.
So when your body is low in both iron and magnesium, it’s no surprise that your energy takes a hit.
The good news? Supporting your body with the right nutrients before your period can make a huge difference to how you feel.
Here’s what we recommend:
A gentle, gut-friendly iron formula with vitamin C, folinic acid, and probiotics to help boost your iron levels without the side effects.
Supports energy, focus and immune health
Ideal if you have low iron or heavy periods
No nausea or constipation
A powerful blend of magnesium glycinate and nicotinamide riboside to support your energy, mood and nervous system during your cycle.
Promotes mitochondrial energy (your cells’ energy engines)
Helps with mood, stress, sleep and muscle recovery
Gentle on the gut and easy to absorb
That slump before your period is real, but it’s not something you just have to deal with every month.
Supporting your body with key nutrients like iron and magnesium can help you feel more balanced, more energised, and more like yourself in the lead-up to your period.
👉 Explore IronBiotic
👉 Explore MitoMag
Small shifts can lead to big changes in how you feel.
10 min read
10 min read
Published research suggests iron bisglycinate is the best-tolerated form of iron during pregnancy. Studies show it may support iron status comparably to ferrous sulfate at roughly half the dose, with significantly fewer gastrointestinal side effects. Most pharmacy-shelf iron supplements in Australia use ferrous sulfate or ferrous fumarate — cheaper forms that commonly cause constipation and nausea.
