Do supplements actually help PMS?

Three of them have real trial evidence behind them. The quality is not the same for all three, so the grade matters more here than anywhere.

3 findings. Best evidence here: strong.

Calcium, magnesium, vitamin D

  1. strong PMS

    Calcium every day, all cycle, is one of the few things with real trial evidence behind it.

    Calcium ~1000-1200mg/day: 73% fewer symptoms vs 15% placebo (crossover RCT)

    Thys-Jacobs RCT

  2. moderate PMS

    Magnesium can run low inside your cells even when a blood test looks fine.

    Cellular (erythrocyte) magnesium lower in PMS even when serum looks normal

    PubMed

  3. moderate PMS

    If your vitamin D is low, topping it up may ease things, partly through inflammation.

    Vitamin D RCT: supplementation improved symptoms + inflammation markers (in deficiency)

    Vit D RCT

The grades are mine, applied the same way to every row. See how I grade and read the rest of the table.

Knowing why only helps if you can use it

Niyora turns this into three steps for when it actually hits. Reflect on what happened, regulate in about a minute, respond with a clearer head.