What is the proper amount of magnesium citrate per day for a person 67 years of age and 180 pounds?

Hello Anon

Thank you for writing!

You should be taking about 320mg per day (this is the recommendation for women over 50). You can also get magnesium from foods such as whole wheat foods (bread, cereal, flour), nuts (almonds, peanuts, cashews), quinoa and tofu. If you are not eating these kinds of foods, a 100mg supplement is not enough.
Best,
Susan