Comparison
Citicoline vs EGCG
Side-by-side of Citicoline and EGCG. 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.
EGCG
EGCG supplement guide: 300-600 mg/day green tea catechin for fat loss and cardiovascular markers. Hepatotoxicity risk above 800 mg/day fasted.
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
EGCG
- •Modest fat loss (~1.3 kg over 12 weeks) when combined with caffeine and caloric deficit
- •Small reductions in LDL cholesterol (3-6 mg/dL) and systolic blood pressure (2-3 mmHg)
- •EFSA flags hepatotoxicity risk above 800 mg/day, particularly when taken fasted
- •Bioavailability is 0.1-1.0%; gut microbiome variation drives population-variable response
- •Green tea extract typically combines EGCG with caffeine and L-theanine for additive effects
- •Reduces non-heme iron absorption when co-administered with meals
Side-by-side
| Attribute | Citicoline | EGCG |
|---|---|---|
| Category | supplement | natural |
| Also known as | CDP-choline, cytidine 5'-diphosphocholine, Cognizin | epigallocatechin gallate, green tea extract |
| Half-life (hr) ↗ | 56 | 3 |
| Typical dose (mg) ↗ | 500 | 400 |
| Dosing frequency | 1 to 2 times daily | 1 to 2 times daily with food |
| Routes | oral, intravenous | oral |
| Onset (hr) | 1 | 1.5 |
| Peak (hr) | 2 | 2 |
| Molecular weight | 488.32 | 458.37 |
| Molecular formula | C14H26N4O11P2 | C22H18O11 |
| 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. | Inhibits catechol-O-methyltransferase (COMT) to prolong norepinephrine signaling; activates AMPK; scavenges reactive oxygen species via gallate ester; modulates gut microbiome and pancreatic lipase activity. |
| Legal status | Dietary supplement (US, Cognizin GRAS); prescription medication in most of the world | Dietary supplement; warning labels required above 800 mg/day in some EU jurisdictions |
| WADA status | allowed | allowed |
| DEA / Rx | OTC supplement (US); Rx in most of the world | Not scheduled |
| Pregnancy | Insufficient data for routine use | Avoid high-dose extracts; moderate green tea consumption appears acceptable |
| CAS | 987-78-0 | 989-51-5 |
| PubChem CID | 13804 | 65064 |
| Wikidata | Q411470 | Q307091 |
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)
EGCG
Common side effects
- nausea
- abdominal discomfort
- diarrhea
- jitteriness (with caffeine)
- sleep disruption (with caffeine)
Contraindications
- pregnancy at high-dose extracts
- active liver disease
- iron deficiency anemia (separate dosing)
Interactions
- iron supplements: reduces non-heme iron absorption; separate by 2 to 3 hours(moderate)
- anticoagulants: additive effects at high catechin doses(minor)
- beta-blockers (nadolol): reduced absorption when taken simultaneously(moderate)
- hepatotoxic supplements (high-dose niacin, kava): theoretical additive hepatotoxicity at high EGCG doses(moderate)
- stimulants and caffeine: additive thermogenic and cardiovascular effects(minor)
Which Should You Take?
Citicoline and EGCG 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 focus or working memory, pick Citicoline.
- → If your priority is stroke recovery, pick Citicoline.
- → If your priority is metabolic health and glucose control, pick EGCG.
- → If your priority is healthspan extension, pick EGCG.
Edge case: Half-lives differ materially (Citicoline ~56 hr vs EGCG ~3 hr). Citicoline reaches steady state faster; EGCG is easier to dial in if tolerability is uncertain.
Default choice: either is defensible. Citicoline edges out on goal breadth + legal accessibility; EGCG 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 Citicoline and EGCG?
Citicoline and EGCG differ in category (supplement vs natural), mechanism, and typical dosing. See the side-by-side table for full details.
Which has a longer half-life, Citicoline or EGCG?
Citicoline half-life is 56 hours; EGCG half-life is 3 hours.
Can you stack Citicoline with EGCG?
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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