Alpha-Gpc vs Caffeine for focus
Short answer: For focus, more users report improvement with Alpha-Gpc — 89% of 199 reports, versus 83% of 568 for Caffeine.
Alpha-Gpc has 1 meta-analyses and 13 randomized trials on PubMed; Caffeine has 680 and 2,072.
Based on 1,096 reports about Alpha-Gpc and 2,414 about Caffeine. Not medical advice.
| Alpha-Gpc Supplement | Caffeine Substance | |
|---|---|---|
| Users say it helped | 54%helped384 reports · high confidence | 47%helped1,448 reports · high confidence |
| Verdict | Mixed | Mixed |
| Research | BResearch: Moderate | AResearch: Strong |
| Meta-analyses / RCTs | 1 / 13 | 680 / 2,072 |
| Mainly used for | ||
| Energy % reporting improvement | 84% (31) | 83% (908) |
| Focus % reporting improvement | 89% (199) | 83% (568) |
| Anxiety % reporting improvement | 47% (15) | 16% (240) |
| Mood % reporting improvement | 39% (70) | 74% (137) |
| Sleep % reporting improvement | 57% (7) | 15% (131) |
| Common side effects | depression, headache, irritability, nausea | jitteriness, anxiety, insomnia, headache |
| Typical dose reported | 100 mg / daily | 100-150 mg / daily |
α-GPC alone or in combination with donepezil improved cognition, behavior, and functional outcomes among patients with neurological conditions associated with cerebrovascular injury.
J Alzheimers Dis, 2023 ↗“Since I started with L-Tyrosine and Alpha GPC each morning, 3-4 weeks ago. I don’t know which is more effective. But I now feel like I’m on ADHD meds. It’s been transformative.”
To avoid reductions in total sleep time, coffee (107 mg per 250 mL) should be consumed at least 8.8 h prior to bedtime and a standard serve of pre-workout supplement (217.5 mg) should be consumed at least 13.2 h prior to bedtime. The results of the present study provide evidence-based guidance for the appropriate consumption of caffeine to mitigate the deleterious effects on sleep.
Sleep Med Rev, 2023 ↗“Personally, I feel and function much better if I keep my caffeine intake very low to zero.”
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Percentages come from first-hand user reports and are not clinical outcomes. Talk to a doctor before starting, stopping or combining anything. How we rate