ProveIt Supplements

Independent, evidence-based supplement analysis.

✓ Not Sponsored

✓ No Paid Reviews

✓ Science-Based

Company

  • About Us
  • Our Methodology
  • Contact
  • Blog
  • Authors

Legal

  • Privacy Policy
  • Terms of Service
  • Medical Disclaimer
  • Affiliate Disclosure

Resources

  • All Categories
  • Ingredient Database
  • Browse Supplements
  • FAQ

© 2025 ProveIt Supplements. All rights reserved.

Medical Disclaimer: The information provided is for educational purposes only and is not intended as medical advice. Always consult with a qualified healthcare professional before starting any supplement regimen.

Prove It
Browse SupplementsBlogAuthorsAboutMethodologyFAQ
Get Your Personalized Supplement StackSupplement Stack Quiz
Menu
HomeBrowse SupplementsBlogAuthorsAboutMethodologyFAQ
Back

Alphasize Alpha Gpc

Also known as: Alpha-GPC, L-Alpha-Glycerylphosphorylcholine, Alpha-glycerylphosphorylcholine

Overview

Alpha-GPC (Alpha-glycerylphosphorylcholine) is a naturally occurring choline compound found in small amounts in foods like meat, fish, and dairy. It serves as a precursor to acetylcholine, a neurotransmitter crucial for memory and cognitive functions, and is also involved in phospholipid metabolism in the brain. As a dietary supplement, Alpha-GPC is primarily used to support cognitive function, memory enhancement, and physical performance. It is rapidly absorbed, with plasma choline levels peaking within 30-120 minutes after ingestion. Research on Alpha-GPC is ongoing, with studies exploring its potential benefits for cognitive impairments and physical power output. While some studies show promising results, others highlight the need for more rigorous trials to confirm its efficacy and optimal usage.

Benefits

Alpha-GPC is primarily recognized for its potential cognitive and physical benefits. It may improve memory and cognitive function, particularly in individuals with cognitive impairments. Some studies suggest that long-term supplementation (90-720 days) can improve memory scores, especially when combined with acetylcholinesterase inhibitors. Preliminary evidence also indicates that Alpha-GPC can enhance power output. Additionally, it may increase growth hormone secretion, with elderly individuals potentially experiencing greater relative increases. However, the effect sizes and clinical significance vary across studies, necessitating further research to establish consistent outcomes and quantify the benefits more precisely.

How it works

Alpha-GPC primarily works by serving as a precursor for acetylcholine synthesis, thereby influencing cholinergic neurotransmission. Acetylcholine is a crucial neurotransmitter involved in memory, learning, and other cognitive functions. By increasing acetylcholine levels in the brain, Alpha-GPC enhances the activity of acetylcholine receptors in the central nervous system. It is rapidly absorbed, leading to a quick increase in plasma choline levels, which then supports the synthesis of acetylcholine. This mechanism of action underlies its potential benefits for cognitive enhancement and physical performance.

Side effects

Alpha-GPC is generally considered safe with minimal side effects reported. The most commonly reported side effect is mild gastrointestinal discomfort. Uncommon and rare side effects are not well-documented. Potential drug interactions may occur with acetylcholinesterase inhibitors, so caution is advised when combining these substances. There are no well-documented contraindications, but pregnant or breastfeeding women should consult healthcare providers before use. Overall, Alpha-GPC has a favorable safety profile, but individuals should be aware of potential gastrointestinal issues and consult with a healthcare professional if taking other medications that affect acetylcholine levels.

Dosage

The minimum effective dose of Alpha-GPC is not definitively established, but studies suggest benefits at doses around 600-1200 mg per day. This range is typically considered the optimal dosage for cognitive and physical performance enhancement. The maximum safe dose is not well-defined, but doses up to 1200 mg have been used without significant adverse effects in some studies. Alpha-GPC can be taken before physical activity or cognitive tasks to potentially enhance performance. It is available in various forms, including capsules and powders. Due to its rapid absorption, timing of administration can be adjusted based on individual needs and activities.

FAQs

What is Alpha-GPC used for?

Alpha-GPC is commonly used to support cognitive function and enhance physical performance. It is often taken to improve memory, focus, and power output during exercise.

Is Alpha-GPC safe?

Alpha-GPC is generally considered safe, but it's advisable to consult a healthcare provider, especially if you are taking medications that affect acetylcholine levels.

When should I take Alpha-GPC?

Alpha-GPC can be taken before activities requiring focus or physical exertion to potentially enhance performance. Its rapid absorption allows for flexible timing based on individual needs.

What results can I expect from taking Alpha-GPC?

Results vary, but some users report improved cognitive function and physical performance. It supports neurotransmitter synthesis rather than acting as a direct stimulant.

Does Alpha-GPC have any side effects?

Side effects are rare, but some individuals may experience mild gastrointestinal discomfort. Consult a healthcare provider if you have concerns.

Research Sources

  • https://pmc.ncbi.nlm.nih.gov/articles/PMC10041421/ – This systematic review and meta-analysis examined the cognitive effects of Alpha-GPC in adults with cognitive impairments. The review suggests that Alpha-GPC may improve cognitive symptoms, but the authors note that more research is needed to establish consistent outcomes.
  • https://pmc.ncbi.nlm.nih.gov/articles/PMC4595381/ – This randomized, double-blind, placebo-controlled crossover trial investigated the acute effects of Alpha-GPC supplementation on mood and cognitive function in 20 young adults. The study found no significant acute benefits on mood or cognitive function, highlighting the need for further research with larger sample sizes to account for individual variability.
  • https://examine.com/supplements/alpha-gpc/research/ – Examine.com provides a summary of research on Alpha-GPC, noting that it may improve memory scores in individuals with cognitive impairments, especially when combined with acetylcholinesterase inhibitors. The review highlights that the mechanisms are not fully understood and further research is warranted.
  • https://www.webmd.com/vitamins/ai/ingredientmono-1087/alpha-gpc – WebMD provides general information on Alpha-GPC, describing its uses and potential benefits. It is important to note that while WebMD can be a useful resource, it should be supplemented with peer-reviewed research for a comprehensive understanding.
  • https://brain-feed.com/blogs/the-science/alpha-gpc-benefits-memory-scores-in-over-400-people-a-review – This blog post reviews studies indicating that Alpha-GPC improved memory scores in over 400 individuals with cognitive impairments over a period of 90-720 days. The review emphasizes the potential benefits of Alpha-GPC when combined with acetylcholinesterase inhibitors, while also acknowledging that the underlying mechanisms are not fully understood.

Supplements Containing Alphasize Alpha Gpc

High (G) Hardcore Formulation by High T
73

High (G) Hardcore Formulation

High T

Score: 73/100
LFG Burn Berry by Bucked Up
65

LFG Burn Berry

Bucked Up

Score: 65/100
Cognitive Complex by Nutricost
58

Cognitive Complex

Nutricost

Score: 58/100
Bucked Up Pre-Workout Grape Gainz by Bucked Up
69

Bucked Up Pre-Workout Grape Gainz

Bucked Up

Score: 69/100
Even + Collagen Boost Lime Mint by zolt
73

Even + Collagen Boost Lime Mint

zolt

Score: 73/100
Woke AF Blue Raz by Woke AF
63

Woke AF Blue Raz

Woke AF

Score: 63/100
Preseries Bulk Blue Raspberry by Transparent Labs
83

Preseries Bulk Blue Raspberry

Transparent Labs

Score: 83/100
Komodo Pump Blue Steel Blueberry Mojito by Alpha Lion
75

Komodo Pump Blue Steel Blueberry Mojito

Alpha Lion

Score: 75/100
BAMF Blue Raz-Berry Beret by Bucked Up
83

BAMF Blue Raz-Berry Beret

Bucked Up

Score: 83/100
Woke AF Watermelon Lemonade by Woke AF
78

Woke AF Watermelon Lemonade

Woke AF

Score: 78/100
LFG Burn Razzle Dazzle by Bucked Up
70

LFG Burn Razzle Dazzle

Bucked Up

Score: 70/100
LFG Burn Tropical by Bucked Up
60

LFG Burn Tropical

Bucked Up

Score: 60/100