nutricost
Magnesium* Extra-Strength* 420MG
84/100
SUPPIE SCORE
82/100
EFFICACY
High
SAFETY
82/100
CLEANLINESS
What Does Magnesium* Extra-Strength* 420MG Do?
High-dose magnesium blend (420mg) supports muscle, sleep, and stress relief with strong evidence. Glycinate aids absorption; oxide boosts laxative effect. Excellent safety for healthy adults.
How does the magnesium oxide and glycinate blend compare in absorption to other forms?
What are the optimal daily magnesium dosages for muscle recovery and sleep?
Are there benefits to mixing magnesium oxide and glycinate in one supplement?
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What Are the Benefits of Magnesium* Extra-Strength* 420MG?
Based on proven scientific research
Muscle RelaxationStrong
Sleep SupportStrong
Stress ReductionModerate
Bone HealthStrong
Heart RhythmModerate
Good For:
What Are the Side Effects of nutricost Magnesium* Extra-Strength* 420MG?
Always consult your health practitioner if in doubt.
RiskLow Risk
Overview
•420mg elemental magnesium is within safe adult RDA range (310-420mg); glycinate form enhances tolerability.
•Magnesium oxide may cause GI upset (diarrhea) in sensitive individuals at this dose.
•Low interaction risk; may enhance effects of blood pressure or muscle relaxant medications.
•Consult physician if pregnant, nursing, or with kidney impairment due to accumulation risk.
•Vegan, gluten-free, non-GMO; no major allergens present.
•Long-term use safe at recommended dose; monitor for hypermagnesemia in renal patients.
Potential Side Effects
Negative Interactions
Inactive Ingredients
Low Risk
Low Risk
Low Risk
Low Risk
What Are the Ingredients in nutricost Magnesium* Extra-Strength* 420MG?
Magnesium (as magnesium oxide, magnesium glycinate)
420mg
Hypromellose (cellulose) capsule
Stearic acid
Magnesium stearate (vegetable source)
Silica
Frequently Asked Questions
Common questions about nutricost Magnesium* Extra-Strength* 420MG