Cortisol levels are often helped most by the basics: better sleep, regular exercise, stress management, and a balanced diet. Research-backed tips also include limiting caffeine, practicing deep breathing or meditation, and considering certain supplements like magnesium or omega-3s with medical guidance.

What tends to help

  • Sleep 7–8 hours regularly, since poor sleep can raise cortisol.
  • Do moderate exercise consistently, but avoid overtraining if stress is already high.
  • Use relaxation practices like slow breathing, meditation, yoga, or mindfulness.
  • Eat enough protein, fiber, fruits, vegetables, and whole grains.
  • Cut back on excess caffeine, especially if it makes you jittery or disrupts sleep.

Supplements sometimes mentioned

  • Magnesium may help with stress regulation.
  • Omega-3s are linked with lower stress responses in some studies.
  • Ashwagandha, L-theanine, vitamin C, and rhodiola are also commonly discussed, but results vary and they can interact with medications.

When to get checked

If you have symptoms like unexplained weight gain around the belly or face, easy bruising, muscle weakness, fatigue, or sleep problems, it is worth talking with a clinician because persistently high cortisol can have medical causes.

TL;DR: The most reliable starting points are sleep, stress reduction, exercise, and a whole-food diet; supplements can help some people, but they are secondary to lifestyle.