Guide
Foods with magnesium — and why none contain magnesium glycinate
Magnesium glycinate doesn't occur in food — it's a manufactured chelate made for supplements. Here are the actual food sources of magnesium, with USDA values.
No food naturally contains magnesium glycinate — it's a manufactured chelate made by binding magnesium to the amino acid glycine, produced for supplements, not something that occurs in nature. Foods do contain magnesium on its own, bound to whatever the food's own chemistry provides, and plenty of them are good sources.
Why "magnesium glycinate foods" isn't a real category
Magnesium glycinate is a chelate: one magnesium atom bonded to two glycine molecules, made industrially so the mineral is bound to something the gut can absorb along a well-understood pathway. Food doesn't work that way. A pumpkin seed's magnesium is bound to phytate, chlorophyll and other plant compounds, not to two glycine molecules in the specific arrangement a supplement manufacturer creates. Glycine itself is present in ordinary food protein, and magnesium is present in plenty of foods — but the two aren't paired the way they are in a capsule.
If a product or article claims a food is "high in magnesium glycinate," that's a marketing shorthand, not a chemical fact. What's true is that the food is a source of magnesium.
Foods that are actually high in magnesium
| Food | Typical serving | Magnesium |
|---|---|---|
| Pumpkin seeds, raw | 1 oz (28 g) | ~140 mg |
| Cashews, raw | 1 oz (28 g) | ~82 mg |
| Almonds | 1 oz (28 g) | ~76 mg |
| Spinach, cooked | 1 cup (180 g) | ~157 mg |
| Peanut butter | 2 tbsp (32 g) | ~62 mg |
| Banana | 1 medium (118 g) | ~32 mg |
| Avocado | 1/2 fruit (~100 g) | ~29 mg |
Seeds, nuts, leafy greens and legumes are consistently the densest food sources; magnesium sits in the chlorophyll molecule of green vegetables and in the seed coat of nuts and seeds, which is part of why refining grains and processing seeds strips much of it out.
How much you need from food
The Institute of Medicine's Dietary Reference Intakes set the Recommended Dietary Allowance for adult men at 400–420 mg/day and for adult women at 310–320 mg/day, depending on age. Two ounces of pumpkin seeds and a cup of cooked spinach alone gets an adult most of the way there before counting anything else eaten that day.
What about the glycine half?
Glycine, the amino acid magnesium is bound to in a supplement, is one of the most common amino acids in ordinary food protein — it's abundant in meat, fish, eggs, dairy and legumes, usually as part of larger proteins rather than as a free amino acid. So both halves of "magnesium glycinate" exist naturally in food, separately: magnesium in seeds, greens and legumes, and glycine in protein-containing foods generally. A supplement manufacturer combines them into one molecule for a specific absorption pathway; a meal doesn't do that.
Why processing lowers magnesium content
Refining removes a large share of a grain's magnesium along with its germ and bran, which is why whole grains carry meaningfully more than their refined counterparts. The same logic applies to nuts and seeds: dehulling and heavy processing before packaging can reduce mineral content compared with less-processed versions of the same food. If a diet leans heavily on refined grains and low-magnesium proteins, the food sources above are the ones worth adding rather than a magnesium-labelled processed product.
Should you take magnesium glycinate with food?
There's no requirement to take it with a meal — magnesium glycinate doesn't need food to be absorbed the way, for example, a fat-soluble vitamin does. Some people find any magnesium supplement sits more comfortably in the stomach with food; that's about personal tolerance, not a documented absorption effect.
Questions people ask
What foods have magnesium glycinate?
None. Magnesium glycinate is a manufactured chelate used in supplements. Foods contain magnesium on its own — seeds, nuts, leafy greens and legumes are the richest sources.
What foods are high in magnesium?
Pumpkin seeds, cashews and almonds lead by weight; cooked spinach and other leafy greens are close behind by serving. Legumes, whole grains and peanut butter also contribute meaningfully across a normal diet.
Should magnesium glycinate be taken with food?
It doesn't need to be. Taking it with a meal is a matter of personal comfort, not a documented requirement for absorption.
Can I take magnesium glycinate without food?
Yes. There's no evidence it needs to be taken with a meal to be absorbed.
Do I need to take magnesium glycinate with food?
No — it's not a fat-soluble nutrient that depends on dietary fat for absorption. Some people prefer taking any magnesium supplement with food to reduce stomach upset.
Related reading
- Elemental magnesium: why "2,500 mg magnesium glycinate" isn't 2,500 mg of magnesium
- How much magnesium glycinate should you take a day?
- What is magnesium glycinate? A plain guide
Sources
- USDA FoodData Central: pumpkin seeds (raw), cashews (raw), almonds, spinach (cooked, boiled, drained), peanut butter (creamy), bananas (raw), avocados (raw, California). Values checked 26 September 2026.
- Institute of Medicine. Dietary Reference Intakes for Calcium, Phosphorus, Magnesium, Vitamin D, and Fluoride. National Academies Press, 1997 (NCBI Bookshelf NBK109816).
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.