Compare Supplements

Side-by-side comparison of 2 supplements

Mg8.5

Magnesium

High safety

Rho8.5

Rhodiola Rosea

High safety

Evidence

Evidence Score8.5/10

Studies: 42

Meta-analyses: 25

Evidence Score8.5/10

Studies: 42

Meta-analyses: 3

Outcome Grades

Reduce anxiety & stressA

Build stress resilienceB

PMS reliefA

Sharpen focusB

NeuroprotectionB

Fix sleep schedule / jet lagB

Support moodB

Improve enduranceC

Reduce anxiety & stressB

Build stress resilienceA

PMS reliefB

Sharpen focusB

NeuroprotectionB

Fix sleep schedule / jet lagB

Support moodB

Improve enduranceC

A-F grade per outcome, combining overall evidence with goal-specific relevance. A = strong evidence; F = insufficient. Hover a badge for details.

Pooled effect-size head-to-headBeta

Direct side-by-side from the meta-analysis. Each row is an outcome where ≥2 of your selected supplements have pooled data. Best effect per row highlighted.

Outcome	Magnesium	Rhodiola Rosea
Support mood — Depression − better · points (PHQ-9)	−2.8 weak · CI ∋ 0	−4.6 weak · CI ∋ 0

Click an outcome to see the full ranked table on the goal page.

Dosage & timing

Dosage:

300mg elemental magnesium

Best Time:

Evening · with food (preferred)

Take with food

Form:

Depends on goal - see notes

Dosage:

340mg

Best Time:

Morning

Can take on empty stomach

Form:

Standardized to 3% rosavins and 1% salidroside

What you'll notice

😴 Improved Sleep80%

1-2 weeks

😌 Calmer Mind75%

1-2 weeks

💆 Muscle Relief85%

1 week

💪 Reduced Fatigue80%

1 week

🧘 Better Stress Handling75%

1-2 weeks

🎯 Enhanced Mental Performance70%

1 week

Safety

High safety

Contraindications:

Severe kidney disease (reduced magnesium excretion)
Myasthenia gravis
Heart block (without pacemaker)

Drug Interactions:

Antibiotics (fluoroquinolones, tetracyclines)
Bisphosphonates
Diuretics

Side Effects:

Loose stools/diarrheaDrowsiness

High safety

Contraindications:

Bipolar disorder (may trigger mania in some)
Autoimmune conditions (immunostimulating effects)

Drug Interactions:

MAOIs
Stimulants
SSRIs

Side Effects:

DizzinessDry mouthInsomnia

Works well with

enhances

stacks-well

complementary

complementary

stacks-well

complementary

How they work together

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Outcome

Magnesium

Rhodiola Rosea

Support mood — Depression

− better · points (PHQ-9)

−2.8

weak · CI ∋ 0

−4.6

weak · CI ∋ 0