MG Plus Protein is a nonprescription magnesium supplement with added soy protein. The active ingredient is magnesium oxide amino acid chelate, a form of magnesium attached to an amino acid. This makes it easier for the body to absorb the magnesium from the digestive system. Tablets have been shaped and glazed to allow for easier swallowing for people with medical conditions that may interfere with swallowing.
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MG Plus Protein
Magnesium oxide amino acid chelate
Used as a mineral supplement to add magnesium to the daily diet.
Magnesium supplement
Tablet
By mouth
MG Plus Protein is a supplement that helps people meet dietary magnesium needs or correct low magnesium levels.
Tablet
133 mg
Recommended daily intake from all sources for male adults:
19–30 years of age: 400 mg/day
31 years of age and older: 400 mg/day
Recommended daily intake from all sources for female adults:
19–30 years of age: 310 mg/day
31 years of age and older: 320 mg/day
Recommended daily intake from all sources for pregnant women:
14–18 years of age: 400 mg/day
19–30 years of age: 350 mg/day
31–50 years of age: 360 mg/day
Recommended daily intake from all sources for lactating women:
14–18 years of age: 360 mg/day
19–30 years of age: 310 mg/day
31–50 years of age: 320 mg/day
Recommended daily intake from all sources for children:
0–6 months of age: 30 mg/day
7–12 months of age: 75 mg/day
1–3 years of age: 80 mg/day
4–8 years of age: 130 mg/day
9–13 years of age: 240 mg/day
14–18 years of age: 420 mg/day for boys, 360 mg/day for girls
Mg-Plus Protein
100 tablets bottle
Follow the package instructions or any instructions given by a healthcare provider.
Take only three tablets daily. Consult a physician before taking larger daily doses.
Tablets can be taken without regard to food. However, taking tablets with food will help minimize stomach upset or other gastrointestinal complaints.
Take tablets with an eight-ounce glass of water.
For people who cannot swallow a tablet, the tablet can be crushed and:
Mixed with food and taken that way
Administered through a feeding tube
Store at room temperature protected from heat, light, and moisture.
Take a dose as soon as you remember.
Do not take extra tablets to make up for a missed dose.
Magnesium has no contraindications.
Do not use this product if you have known allergies to soy protein or any of the other ingredients in the tablet.
Make sure your doctor knows if you are pregnant or breast feeding, or if you have kidney disease.
Before taking MG Plus Protein, talk to a healthcare provider first if you are pregnant, breastfeeding, or have kidney disease.
MG Plus Protein is intended for adults. Talk to a doctor before administering this supplement to a child.
Always tell prescribers about dietary supplements when they prescribe new medications.
Magnesium can interfere with the body’s ability to absorb some medications, including:
Take the antibiotic dose either two hours before or four to six hours after the magnesium dose
Bisphosphonates (for osteoporosis)
Separate doses by at least two hours
Some drugs can raise magnesium levels, so magnesium supplements should be used sparingly when taking these drugs:
Magnesium-containing antacids
Other supplements containing magnesium such as multivitamins with minerals
Some drugs can lower magnesium levels, so a healthcare professional may suggest taking magnesium supplements.
Serious side effects
Allergic reaction: hives, itching, stomach cramps, nausea, vomiting, stomach upset, swelling in your face, lips, mouth, or throat, difficulty breathing, low blood pressure, dizziness, confusion
Less serious side effects
Stomach upset
Diarrhea
Bloating, constipation
Magnesium, StatPearls
Magnesium fact sheet for health professionals, National Institutes of Health (NIH)
Magnesium oxide-magnesium amino acid chelate 300 mg capsule, Kaiser Permanente
MG Plus Protein, Miller Pharmacal Group, Inc.
Soy allergy, Cleveland Clinic
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