Comparison
Coenzyme Q10 vs Magnesium Glycinate
Side-by-side of Coenzyme Q10 and Magnesium Glycinate. Every row below is pulled from the compound schema and will update as our data grows. For deeper reads, follow through to each compound page.
Coenzyme Q10
CoQ10 supplement guide: 100 to 300 mg/day dosing, ubiquinol vs ubiquinone absorption, Q-SYMBIO heart failure data, statin myalgia evidence.
Magnesium Glycinate
Magnesium glycinate supplement guide: chelated bisglycinate form, 200 to 400 mg dosage, sleep architecture benefits, low GI side effects, glycine co-effect.
Effects at a glance
Coenzyme Q10
- •Q-SYMBIO trial showed 43% reduction in major cardiovascular events at 300 mg/day in heart failure
- •Reduces statin-induced myalgia in some patients at 100-200 mg/day per Banach 2014 meta-analysis
- •Migraine prophylaxis at 300 mg/day daily; AHS lists at Level B for prevention
- •Ubiquinol absorbs 2-3x better than ubiquinone in adults over 60
- •Plasma CoQ10 falls 15-40% with chronic statin therapy
- •Small blood pressure reduction (3-5 mmHg systolic) at 100-200 mg/day
Magnesium Glycinate
- •Shortens sleep onset latency in older adults and in deficient populations supplementing 200 to 400 mg elemental Mg
- •Improves subjective sleep quality scores (PSQI, ISI) modestly versus placebo over 4 to 8 weeks
- •Reduces nocturnal leg cramps and exercise-induced muscle cramping in some controlled trials
- •Lowers self-reported anxiety in mild-to-moderate cases, with smaller effect than first-line pharmacotherapy
- •Glycinate form delivers fewer GI side effects than oxide or citrate at equivalent elemental doses
- •Insufficient as a stand-alone hypertension treatment; small adjunctive blood-pressure reductions only
Side-by-side
| Attribute | Coenzyme Q10 | Magnesium Glycinate |
|---|---|---|
| Category | supplement | supplement |
| Also known as | CoQ10, ubiquinone, ubiquinol, Q10 | magnesium bisglycinate |
| Half-life (hr) ↗ | 34 | 5 |
| Typical dose (mg) ↗ | 200 | 300 |
| Dosing frequency | 1 to 3 times daily with a fat-containing meal | daily (often evening) |
| Routes | oral | oral |
| Onset (hr) | 6 | 1 |
| Peak (hr) | 720 | - |
| Molecular weight | 863.36 | - |
| Molecular formula | C59H90O4 | - |
| Mechanism | Mobile electron carrier between Complex I/II and Complex III of the mitochondrial electron transport chain. Ubiquinol form acts as a lipid-soluble antioxidant in cell membranes and regenerates oxidized vitamin E. | Magnesium acts as a cofactor for 300+ enzymes and as a voltage-dependent antagonist at NMDA receptors; glycine serves as an inhibitory neurotransmitter and co-agonist at glycine receptors. |
| Legal status | Dietary supplement (most jurisdictions); prescription cardiac medication in Japan | Dietary supplement |
| WADA status | allowed | allowed |
| DEA / Rx | Not scheduled | OTC supplement |
| Pregnancy | Limited safety data; precautionary use at standard doses | Generally considered acceptable at RDA doses; consult clinician |
| CAS | 303-98-0 | 14783-68-7 |
| PubChem CID | 5281915 | 84645 |
| Wikidata | Q140453 | - |
Safety profile
Coenzyme Q10
Common side effects
- mild GI upset (rare)
- headache (rare)
- insomnia at very high doses
Contraindications
- active warfarin therapy without monitoring (modest interaction with INR)
Interactions
- warfarin: structural similarity to vitamin K may modestly reduce warfarin efficacy; monitor INR(moderate)
- antihypertensives: additive blood pressure-lowering at high doses(minor)
- statins: statins reduce CoQ10 synthesis; CoQ10 supplementation does not affect statin efficacy(minor)
- chemotherapy (oxidative-stress-dependent agents): theoretical interference; coordinate with oncology team(moderate)
Magnesium Glycinate
Common side effects
- mild GI upset at high doses
- loose stools (dose-dependent, less than with oxide/citrate forms)
Contraindications
- severe renal impairment
- myasthenia gravis
- heart block
Interactions
- tetracycline and fluoroquinolone antibiotics: magnesium chelates antibiotic, reducing absorption; separate by 2+ hours(moderate)
- bisphosphonates: reduced absorption of bisphosphonate(moderate)
- potassium-sparing diuretics: possible hypermagnesemia in renal impairment(moderate)
Which Should You Take?
Coenzyme Q10 and Magnesium Glycinate score evenly on the criteria we weight (goal breadth, legal accessibility, evidence depth). The conditionals below should drive the decision more than any aggregate score.
- → If your priority is cardiovascular health, pick Coenzyme Q10.
- → If your priority is healthspan extension, pick Coenzyme Q10.
- → If your priority is sleep onset or sleep quality, pick Magnesium Glycinate.
- → If your priority is post-training recovery, pick Magnesium Glycinate.
Edge case: Half-lives differ materially (Coenzyme Q10 ~34 hr vs Magnesium Glycinate ~5 hr). Coenzyme Q10 reaches steady state faster; Magnesium Glycinate is easier to dial in if tolerability is uncertain.
Default choice: either is defensible. Coenzyme Q10 edges out on goal breadth + legal accessibility; Magnesium Glycinate is the right call if your priority sits in the goals listed above.
This verdict is generated from each compound's schema (goals, legal status, evidence outcomes, dosing route). It updates automatically as our compound data evolves; the deeper read sits on each individual compound page.
Common questions
What is the difference between Coenzyme Q10 and Magnesium Glycinate?
Coenzyme Q10 and Magnesium Glycinate differ in category (supplement vs supplement), mechanism, and typical dosing. See the side-by-side table for full details.
Which has a longer half-life, Coenzyme Q10 or Magnesium Glycinate?
Coenzyme Q10 half-life is 34 hours; Magnesium Glycinate half-life is 5 hours.
Can you stack Coenzyme Q10 with Magnesium Glycinate?
Stack compatibility depends on mechanism overlap, legal status, and individual response. Check each compound page for specific interactions and contraindications before combining.
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