Why you’re exhausted by 3pm (and what to do about it)

For so long I thought being tired was just part of being a working mum, part of pregnancy, part of the early newborn days, part of just generally being a woman with a cycle. That 3pm crash (you know the one I mean), is brutal. You have made it through the morning, you have done the things, and suddenly your body is sending you very strong signals that it would like to lie down on the floor and sleep. Or eat all the mini eggs (or is that just me right now?!). 

And then I realised. Yes we might be stressed, in our luteal phases, pregnant or in those postpartum broken sleep days. But sleep isn’t the full picture when it comes to energy. And there is actually something more than just getting a good night’s sleep that we can do to support our energy!

For so many women I work with and I include myself here too, it’s usually a question of blood sugar balance..

When we eat meals that are mostly carbohydrates without much protein, fat, or fibre alongside them, our blood sugar spikes quickly and then drops just as fast. That drop is what you feel as fatigue, brain fog, irritability, or that desperate craving for something sweet or caffeinated to get you through the afternoon. Your body is not broken. It is just responding to what it has been given.

The fix is so so simple (even if it takes a little practice).

Building each meal around a balance of protein, fat, and fibre slows the release of glucose into the bloodstream, which means steadier energy across the whole day rather than peaks and crashes. No dramatic overhaul required. Just a small shift in how you build your plate.

In practice, that looks like:

Adding a source of protein to every meal, whether that is eggs, chicken, fish, lentils, Greek yoghurt, or a handful of nuts. Protein slows digestion and keeps blood sugar stable for longer.

Including a good fat alongside it. Avocado, olive oil, oily fish, seeds. Fat is not the enemy here. It is part of what keeps you full and your energy even.

Making sure there is fibre on the plate too, from vegetables, wholegrains, legumes, or fruit. Fibre further buffers that glucose rise and feeds the gut bacteria that play a bigger role in energy and mood than most people realise.

This combination matters at every meal, but breakfast is probably the most important place to start. A high-sugar or carb-only breakfast sets the blood sugar pattern for the rest of the day. Protein and fat at breakfast is one of the most effective things you can do for your afternoon energy.

Slight side note, because I don’t want to mislead you: It is worth noting that persistent fatigue can have other causes too, including nutrient depletions that are particularly common in the fertility, pregnancy, and postpartum years. Blood sugar balance is a brilliant foundation, but it is not always the whole picture.

If you want to go deeper on the habits that support your hormones and your energy across the whole day, come and have a look at my Work With Me page. I’d love to support you and get you feeling your best, most energised self again!

You don’t have to figure this out alone

Xo,

Kimberley

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