Which magnesium should i take before sleep

Andrew Huberman recommends Magnesium Threonate (also written as magnesium three and -ate) or Magnesium Bisglycinate for enhancing sleep. These forms are more readily transported across the blood-brain barrier, which assists with sleep depth and onset. He suggests a dosage of 200 to 400 milligrams about 30 to 60 minutes before sleep as potentially beneficial for falling asleep 1 2 3. However, it's important to consult with a healthcare professional, especially if there are heart issues or other health concerns 1.