What it is
Guanidinoacetic Acid (GAA) is a direct precursor to creatine, a key molecule for cellular energy. It is synthesized in the body and can be supplemented to increase creatine availability in muscle tissue.
Supplement · Athletic Recovery & Performance
Guanidinoacetic Acid (GAA)
1200 mg · vegan · gluten-free · 90 caps
joint stiffnessmuscle-weaknessjoint pain jointmusclebone
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How it works
GAA is converted to creatine in the kidneys and liver, which is then transported to muscles. In muscle cells, creatine is phosphorylated to phosphocreatine, forming a readily available reservoir of energy to regenerate ATP during high-intensity exercise.
Who should take it
Adults looking to address joint stiffness, muscle weakness, joint pain. Particularly relevant for people who prefer a targeted single ingredient and who have ruled out an underlying condition that needs medical care first.
Avoid / careful
Pregnant or nursing women without clinician oversight. People on prescription medication affecting the same pathway should consult a doctor before combining. Side effects are uncommon at recommended doses but mild GI upset can occur when starting.
When to take it
Morning
Noon
Evening
Night
How to take it
With food
Empty stomach
Before food
FAQs
Frequently asked
How quickly can I expect to see results from Guanidinoacetic Acid?
Measurable improvements in muscle energy and performance are typically observed within 4-12 weeks of consistent daily dosing.
Is Guanidinoacetic Acid safe for long-term use?
At recommended doses, GAA is generally considered safe for long-term use. However, consult a clinician for personalized guidance.
Can Guanidinoacetic Acid be taken with other supplements?
Yes, GAA can be layered into a broader supplement protocol. Consult a healthcare professional for optimal stacking recommendations.
Research
6 studies · 2010–2024
Evidence grade
ABCD
C · C · emerging-to-moderate human evidence for joint and musculoskeletal health
From the blog
Editorial notes
SacredBod's longer take on Guanidinoacetic Acid (GAA) — context the structured blocks above don't capture.
About Guanidinoacetic Acid (GAA)
Guanidinoacetic Acid (GAA) is a athletic recovery & performance supplement used to support joint and musculoskeletal health. Direct creatine precursor for energy and power. It is available in capsule form and dosed for adults in India and internationally. As a western-tradition entry in the SacredBod catalog, it is positioned as a single-ingredient option that can be used on its own or layered into a broader protocol. Guanidinoacetic Acid (GAA) works through the mechanisms characteristic of its class — see the mechanism and research sections for detail. It primarily acts on the joints, muscles, bones, and effects are dose-dependent, typically becoming measurable within 4-12 weeks for joint comfort. Consistency matters more than dose size for this category.
Evidence
Guanidinoacetic Acid (GAA) carries an evidence grade of C in the SacredBod catalog, reflecting emerging human evidence for joint and musculoskeletal health. Direct creatine precursor for energy and power. Benefits are cumulative rather than immediate, typically becoming noticeable within 4-12 weeks for joint comfort, and individual response varies.
Dosing
A typical dose is 1200 mg, taken with food, usually in the morning. Start at the lower end, assess tolerance, and stay consistent; more is not automatically better.
Cautions
Pregnant or nursing women without clinician oversight. People on prescription medication affecting the same pathway should consult a doctor before combining. Side effects are uncommon at recommended doses but mild GI upset can occur when starting.
Who it’s for
Adults looking to address joint stiffness, muscle weakness, joint pain. Particularly relevant for people who prefer a targeted single ingredient and who have ruled out an underlying condition that needs medical care first.
As part of the Athletic Recovery & Performance category, Guanidinoacetic Acid (GAA) can be used on its own or layered into a broader protocol — see the Goes with panel for evidence-aligned pairings.
Added to your stack.