What is the amount of magnesium in 1 teaspoon of eptsom salts?

Epsom salts, chemically known as magnesium sulfate, typically contain about 10% magnesium by weight. A standard teaspoon of Epsom salts weighs approximately 5 to 6 grams, which would equate to about 0.5 to 0.6 grams of magnesium. This amount can vary slightly based on the specific density of the Epsom salts used.