Comparison
Citicoline vs Magnesium Glycinate
Side-by-side of Citicoline 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.
Citicoline
Citicoline supplement profile: CDP-choline as a phosphatidylcholine precursor, Cognizin dosing 250-2000 mg, cognition trials, stroke recovery 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
Citicoline
- •Choline donor and phosphatidylcholine precursor; oral bioavailability roughly 99%
- •Standard prescription medication for stroke recovery and vascular cognitive impairment in much of the world
- •Healthy-adult cognitive trials (Cognizin) report small gains in attention and working memory at 250 to 500 mg/day
- •ICTUS trial (n=2,298) was negative on stroke recovery in the modern thrombolysis era
- •Lower per-gram choline content than alpha-GPC (~18% vs ~40%), meaning smaller TMAO load at equivalent dose
- •Long uridine half-life (~56 hours) supports once or twice daily dosing
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 | Citicoline | Magnesium Glycinate |
|---|---|---|
| Category | supplement | supplement |
| Also known as | CDP-choline, cytidine 5'-diphosphocholine, Cognizin | magnesium bisglycinate |
| Half-life (hr) ↗ | 56 | 5 |
| Typical dose (mg) ↗ | 500 | 300 |
| Dosing frequency | 1 to 2 times daily | daily (often evening) |
| Routes | oral, intravenous | oral |
| Onset (hr) | 1 | 1 |
| Peak (hr) | 2 | - |
| Molecular weight | 488.32 | - |
| Molecular formula | C14H26N4O11P2 | - |
| Mechanism | Hydrolyzed to cytidine and choline after absorption; both cross the blood-brain barrier and are recombined intracellularly to reform CDP-choline, supporting phosphatidylcholine synthesis and acetylcholine production. | 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 (US, Cognizin GRAS); prescription medication in most of the world | Dietary supplement |
| WADA status | allowed | allowed |
| DEA / Rx | OTC supplement (US); Rx in most of the world | OTC supplement |
| Pregnancy | Insufficient data for routine use | Generally considered acceptable at RDA doses; consult clinician |
| CAS | 987-78-0 | 14783-68-7 |
| PubChem CID | 13804 | 84645 |
| Wikidata | Q411470 | - |
Safety profile
Citicoline
Common side effects
- mild GI upset
- headache
- restlessness
- occasional insomnia with evening dosing
Contraindications
- concurrent strong anticholinergic therapy
- established cardiovascular disease (TMAO concern, smaller than alpha-GPC)
Interactions
- anticholinergic medications: partial mutual antagonism(minor)
- cholinesterase inhibitors: additive cholinergic effect(minor)
- antimetabolite chemotherapy (5-FU): theoretical cytidine pathway interaction(minor)
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?
Magnesium Glycinate comes out ahead for most readers on the criteria we weight: 3 catalogued goals, OTC dietary supplement, oral dosing, with a Tier-A outcome catalogued. Citicoline is the right call when one of the conditionals below applies.
- → If your priority is focus or working memory, pick Citicoline.
- → If your priority is stroke recovery, pick Citicoline.
- → 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 (Citicoline ~56 hr vs Magnesium Glycinate ~5 hr). Citicoline reaches steady state faster; Magnesium Glycinate is easier to dial in if tolerability is uncertain.
Default choice: Magnesium Glycinate. Lower friction to source, a Tier-A evidence outcome catalogued, and broader goal coverage. Reach for Citicoline only if your priority sits squarely in the goals it owns 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 Citicoline and Magnesium Glycinate?
Citicoline 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, Citicoline or Magnesium Glycinate?
Citicoline half-life is 56 hours; Magnesium Glycinate half-life is 5 hours.
Can you stack Citicoline 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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