{"product_id":"magnesium-oxide-powder","title":"Magnesium Oxide Powder USP — Heavy Grade Dietary Supplement","description":"\u003cp\u003eGreenway Biotech Magnesium Oxide Powder is heavy-grade magnesium oxide meeting the USP and FCC monographs, a single-ingredient powder with no flavors, sweeteners, fillers, or flow agents. It is the most concentrated magnesium supplement form: at least 520 mg of elemental magnesium per gram, so a quarter of a level teaspoon (about 0.4 g) in water or soft food supplies at least 200 mg of magnesium, 48% of the Daily Value.\u003c\/p\u003e\n\u003cp\u003eMagnesium supports normal muscle and nerve function, energy production, and bone structure.* Magnesium oxide does not dissolve in water and, in small studies reported by the NIH, is less completely absorbed than soluble forms such as citrate; choose it for concentration and economy.\u003c\/p\u003e\n\u003cp\u003eMeasure the quarter teaspoon loosely and level; one serving a day with a meal. Not an antacid or laxative product; not for external use. Ask your healthcare provider first if you have kidney disease or take medication. Current lot tested for heavy metals. Packaged in Madera, California in 1, 2, and 5 lb bags.\u003c\/p\u003e\n\u003cp\u003e*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.\u003c\/p\u003e","brand":"Greenway Biotech, Inc.","offers":[{"title":"1 Pound","offer_id":53004461080888,"sku":null,"price":24.99,"currency_code":"USD","in_stock":false},{"title":"2 Pounds","offer_id":53004461113656,"sku":null,"price":32.99,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":53004461146424,"sku":null,"price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0850\/0900\/files\/ChatGPTImageSep21_2026_04_15_55PM.png?v=1790032578","url":"https:\/\/www.greenwaybiotech.com\/products\/magnesium-oxide-powder","provider":"Greenway Biotech, Inc.","version":"1.0","type":"link"}