Facebook Twitter Email Print Expert Advice What is the most absorbable magnesium supplement? Answer At Fruits & Veggies More Matters we promote getting key nutrients from food. Some of the best food sources of magnesium come from nuts, beans, and spinach. Our Best of: Magnesium page gives a list of several of the fruits and vegetables that are good sources of magnesium. The National Institute of Health also has a thorough guide on magnesium and supplementation. Try our Shrimp Salad Sandwich recipe—it’s an excellent source of magnesium!