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Magnesium & PMS Relief: Can It Really Ease Cramps and Bloating? (UK, 2025)

Soft editorial still life of magnesium supplement beside a water glass, candle and small pink flowers on cream linen with copy space.

Martin Travis |

Why magnesium for PMS?

Many people explore magnesium to support PMS-related cramps, mood changes, water retention and sleep quality. Magnesium plays a role in muscle relaxation and the nervous system, making it a popular addition to premenstrual routines.

Note: Educational only—always consult a professional if you have underlying conditions, are pregnant, or take medication.

Best forms for cramps & mood

Magnesium glycinate

Known for good tolerability and evening calm—commonly chosen for cramps, sleep and irritability.

Magnesium citrate

Popular, widely available, with a gentle osmotic effect—often taken earlier in the day if you’re sensitive.

Avoiding confusion

Check the label for elemental magnesium (the actual magnesium amount), not just the compound weight.

Dosage & timing

  • Start low: Many begin around 100–200 mg elemental magnesium daily.
  • Consistency: Take it daily rather than sporadically; benefits often build over a cycle or two.
  • Timing: Evening use is common for sleep and relaxation; consider earlier timing if you prefer daytime support.

Smart stacks (CBD, sleep, adaptogens)

  • Magnesium + evening CBD for wind-down routines.
  • Daytime calm: Consider gentle adaptogens where appropriate.
  • Sleep hygiene (lights, temperature, routine) to compound effects.

Related reads and products:

Common mistakes to avoid

  • Changing form or dose too quickly—give it time to assess.
  • Taking it too late (e.g., in bed) without a wind-down window.
  • Mixing multiple new supplements at once—hard to track what’s helping.

Read more

FAQs

Which magnesium form is best for PMS?
Many choose glycinate for evening calm and cramps; citrate is another common option. Check tolerability and labels for elemental magnesium.
When should I take it?
Evening is popular for sleep and relaxation. If you prefer daytime benefits, try morning or early afternoon and stay consistent.
Can I combine magnesium with CBD?
Yes—many pair magnesium with CBD in an evening routine. Review product CoAs and personal tolerance.
Are there side effects?
Some forms can upset digestion in higher amounts. Start low and adjust. Consult a professional if you have medical conditions or take medication.

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