which food is high in magnesium
Traditionally, foods highest in magnesium content are green vegetables, whole grain cereals, nuts and beans, and seafood. According to USDA food charts (see a complete chart of magnesium rich foods), the five foods with the highest magnesium per typical serving are: 1  Halibut.2  Mackeral.3  Boiled spinach.4  Bran breakfast cereal.or example, when selecting foods for high magnesium bioavailability it is important also to consider the phytate and oxalate content of foods. Phytates and oxalates, sometimes referred to as phytic acid or oxalic acid, are naturally occurring substances found in many different kinds of foods.