We Asked 4 Dietitians the One Supplement They Actually Take-They All Said the Same Thing

Key Points:

• Magnesium is an essential mineral important for sleep, muscle, and nerve function, but nearly half of Americans do not meet the recommended daily intake through diet alone, prompting many dietitians to supplement.
• Dietitians commonly take magnesium supplements to improve sleep quality, reduce muscle cramps, support athletic recovery, and address nutrient gaps, especially when dietary intake is insufficient.
• Certain groups such as athletes, older adults, people with sleep difficulties, and those with low magnesium intake may benefit most from supplementation, while individuals with kidney disease or myasthenia gravis should consult healthcare providers before use.
• Magnesium supplements are generally safe but can cause digestive side effects like diarrhea and nausea, especially in high doses, and may interact with some medications, so professional guidance is advised.
• When choosing a magnesium supplement, experts recommend selecting well-absorbed forms like magnesium glycinate, following dosing guidelines, avoiding products with unproven claims or added ingredients, and opting for independently tested brands.