Buckwheat and other whole grains are also rich sources of magnesium, a mineral that acts as a co-factor for more than 300 enzymes, including enzymes involved in the body's use of glucose and insulin secretion. (whfoods.org)
Cacao is the richest source of magnesium you can find. (nakedavocado.com)
Dark leafy greens, fish, yogurt, and pumpkin seeds are all rich sources of magnesium. (bonappetit.com)