Magnesium Glycinate vs Taurine
Sleep vs Performance · evidence-backed comparison
- • Magnesium Glycinate has the broader effect profile across the 9 effect categories.
- • Taurine is cheaper per serving ($0.15 vs $0.25).
- • Magnesium Glycinate has higher bioavailability (better absorption).
Side-by-side traits
| Trait | Magnesium Glycinate | Taurine |
|---|---|---|
Category | Sleep | Performance |
Active compound | Magnesium chelated to glycine | Taurine |
Form available | Capsule, Powder, Tablet | Powder, Capsule |
Source | synthetic | synthetic |
Typical dose | 200–400 mg elemental Mg | 1–6 g daily |
Dose range | 200–400 mg | 1–6 g |
Loading protocol | — | — |
Best taken with | evening, with water | water |
Best time of day | evening | any |
Bioavailability How efficiently the body absorbs and utilizes the compound. | Very High (5/5) | High (4/5) |
Onset time | Acute: 1–3 hours | Acute and cumulative |
Half-life | ~28 hours (Mg) | 1 hour (plasma) |
Evidence level Quality and quantity of human research. | Moderate (some RCTs) | Moderate (some RCTs) |
Overall effect Subjective effect magnitude. | Moderate (3/5) | Low (2/5) |
Muscle / strength | Moderate (3/5) | Low (2/5) |
Physical energy | Low (2/5) | Moderate (3/5) |
Focus / cognition | Low (2/5) | Moderate (3/5) |
Mood / stress | Moderate (3/5) | Moderate (3/5) |
Sleep quality | High (4/5) | Moderate (3/5) |
Immunity | Low (2/5) | Low (2/5) |
Recovery Post-exercise recovery support. | Moderate (3/5) | Moderate (3/5) |
Longevity / healthspan | High (4/5) | High (4/5) |
Safety rating 5 = exceptionally well-tolerated; 1 = significant risk profile. | Very High (5/5) | Very High (5/5) |
Price per serving Approximate USD per typical daily dose. | $0.25 | $0.15 |
Vegan friendly | Yes | Yes |
Gluten free | Yes | Yes |
3rd-party tested | Yes | Yes |
About Magnesium Glycinate
The best-tolerated, best-absorbed magnesium form for sleep and stress. Doesn't cause loose stools like citrate.
About Taurine
Calming amino acid that supports cardiovascular function and mitigates caffeine jitters. Recent research links it to extended healthspan.
Vetted brands, third-party testing, ships worldwide.
Vetted brands, third-party testing, ships worldwide.
Magnesium Glycinate safety
Common side effects:
- • Mild laxative effect (rare)
- • Drowsiness
Avoid if:
- • Severe kidney disease
Drug interactions:
- • Bisphosphonates
- • Antibiotics (timing)
Taurine safety
Common side effects:
- • Generally none
Avoid if:
- • Bipolar (mania risk - debated)
Drug interactions:
- • Lithium
Common uses
- • Sleep quality
- • Anxiety
- • Muscle cramps
- • RLS
Stacks well with: Zinc, Vitamin D3, Melatonin
Common uses
- • Heart health
- • Endurance
- • Calming alongside stimulants
- • Healthspan
Stacks well with: Caffeine, Magnesium Glycinate
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Medical disclaimer
SupplementDuel is for educational purposes only and is not medical advice. Consult a physician before starting, stopping, or combining supplements — especially if you are pregnant, breastfeeding, take prescription medication, or have a chronic condition.