
A chelated form of magnesium bound to two glycine molecules, known for its high bioavailability and gentle effect on the stomach, often used for relaxation and sleep.
magnesium bislycinate which is seems at least on par with magnesium 3 and8 in terms of promoting transition into and depth of sleep
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"The speaker mentions magnesium bislycinate as being comparable to magnesium threonates for promoting sleep depth and transition."