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    Discharge Instructions for Hypomagnesemia

    You have been diagnosed with hypomagnesemia. This means you don't have enough magnesium in your blood. Magnesium is a mineral. It helps your body work normally. It helps you form bones. It helps muscles and nerves work. And it helps enzymes and hormones work. A very low magnesium level can be serious and lead to seizures and abnormal heart rhythms. And it can lead to a heart attack. Other symptoms can include:

    • Nausea or vomiting.
    • Sleepiness.
    • Weakness.
    • Personality changes.
    • Muscle spasms or tremors.
    • Loss of appetite.

    Diet changes

    You'll need to eat more foods that contain magnesium. These include:

    • Dark green leafy vegetables, such as salad greens, spinach, kale, chard, and collards.
    • All nuts and nut butters, including peanuts, almonds, pecans, cashews, Brazil nuts, macadamia nuts, peanut butter, and almond butter.
    • Sunflower seeds.
    • Pumpkin seeds.
    • Milk, chocolate milk (prepared from powder mix), and eggnog.
    • Soy products, including tofu, soybeans, and soy milk.
    • Beans.
    • Halibut.
    • Baked potatoes (with skin).
    • Millet, including puffed millet cereal.
    • Brown rice, including brown rice cakes.
    • Avocado, including guacamole.
    • Dried apricots.
    • Bananas.
    • Oatmeal.
    • Bran cereals.
    • Chocolate and cocoa powder.
    • Meal replacement bars and drinks.

    Other home care

    • Take a magnesium supplement as advised.
    • Have your magnesium levels checked as often as advised. This is important if you are taking a diuretic. This medicine helps flush water from the body.
    • Tell your doctor about all the medicines and herbal supplements you take. This includes prescribed and over-the-counter medicines. Some of them can lower your magnesium levels.
    • Take all medicines as directed.
    • Take your pulse as often as advised. Call your doctor if your pulse rate is higher than 100 beats a minute, or as directed.
    • Ask if you need to take a calcium supplement. If your magnesium level is low, you may be low in calcium.

    Follow-up

    Follow up with your doctor, or as advised. Your doctor will need to watch your condition closely. You may need extra care if you have a health condition that causes your hypomagnesemia.

    When to call for help

    Contact your doctor right away or call 911if you have:

    • Muscle twitching, spasms, or cramps.
    • Fatigue.
    • Confusion.
    • Loss of consciousness or fainting.
    • Dizziness.
    • Irregular or fast heartbeat.
    • Chest pain or shortness of breath.
    Online Medical Reviewer: Brittany Poulson MDA RDN CD CDE
    Online Medical Reviewer: Heather M Trevino BSN RNC
    Date Last Reviewed: 9/1/2025
    © 2000-2026 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
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    Southern New Mexico
    Surgery Center

    2301 Indian Wells Rd. Suite B
    Alamogordo, NM 88310
    www.snmsc.org

    Phone: 575.437.0890
    Fax: 575.437.0905
    Email: info@snmsc.org

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