04/29/2026
Your PMS might not be a hormone problem. It might be a blood sugar problem.
Here's something most doctors never connect for their patients: during the luteal phase (the week or two before your period), progesterone rises and temporarily reduces your insulin sensitivity. In plain terms, your cells don't respond to insulin as efficiently, blood sugar becomes harder to regulate and that instability shows up as mood swings, cravings, fatigue and bloating.
What looks like PMS is often your metabolism asking for support.
When I started looking at cycle symptoms through a blood sugar lens, everything clicked for my patients in a way it never had before.
The good news is that targeted nutrition during this phase makes a real difference. Prioritizing protein at every meal, pairing carbohydrates with healthy fats and managing cortisol through sleep and stress practices can genuinely shift how you feel in those pre-period days.
This is not about being perfect. It's about understanding what your body is doing and giving it what it needs at the right time.
Have you ever tracked whether your symptoms are worse in the week before your period? Tell me in the comments — I'd love to know what you've noticed.
Save this post for your next cycle!