💊 Magnesium isn't necessarily a "more is better" supplement — the studied doses vary a lot depending on what you're taking it for. The dose that helps most with sleep isn't the same dose that's best for migraines or constipation, and going over the ideal amount can come with side effects. The ideal dose may look different depending on your condition, medications, diet, and individual needs. Check with your healthcare provider before starting a new supplement routine. Choosing the right magnesium supplement starts with knowing the differences. 💬 Comment MAGNESIUM and we'll send you our Healthline-approved picks. #magnesium #magnesiumbenefits #magnesiumsupplement #supplements #supplementroutine Before you read it, we reviewed it. Article Medically Reviewed By: Katherine Marengo, LDN, R.D. Article Review Date: 6/24/2026 Source: Berkheiser, K. (June 24, 2026). Magnesium Dosage: How Much to Take Per Day. Healthline. healthline.com/nutrition/magnesium-dosage