The Science
Arugula provides magnesium (11% DV) and potassium (8% DV), which can support muscle relaxation and nerve function, potentially aiding sleep quality. However, it lacks significant tryptophan or melatonin precursors, and its calcium (12% DV) may help but is not decisive. The effect depends on the individual's overall diet and whether sleep issues stem from mineral deficiencies.
Recommendation
Include arugula as part of a balanced dinner, but pair it with tryptophan-rich foods like turkey or seeds for better sleep support.