Can I take Alpha-GPC and Vitamin B5 together?

Yes. The combination of Alpha-GPC and Vitamin B5 produces a measurable benefit. B5 (pantothenic acid) is required for acetyl-CoA synthesis, which combines with choline (from Alpha-GPC) to form acetylcholine.

What kind of interaction is it?

Synergy: a documented combination effect that is stronger or more useful than either substance taken alone.

Is this interaction backed by published research?

Yes. NutriStack lists 2 citation rows for the Alpha-GPC + Vitamin B5 pair, each linking to PubMed by PMID where available. Full sourcing methodology at https://nutristackapp.com/methodology/interactions.

Interaction databaseSupplement × SupplementReviewed May 2026

Alpha-GPC and Vitamin B5, a synergy.

Q: How does this affect a NutriStack Stack Score?

+2 to your Stack Score per scored synergy row.

B5 (pantothenic acid) is required for acetyl-CoA synthesis, which combines with choline (from Alpha-GPC) to form acetylcholine.

2 primary source citations. Moderate evidence. Last verified May 30, 2026.

Open the interaction checker →Read the methodology

One pair, every claim cited. The two substances, the type, the mechanism, the recommendation, and the primary literature.
Same shape as the other 1,729 pairs in the public database.

Sourcing standards·Evidence tiers

From the interaction database

What the row says.

Every entry follows the same shape: what is happening, the mechanism, the recommendation, and the primary literature.

At a glance

Substances: Alpha-GPC and Vitamin B5
Pair type: Synergy
Evidence (highest tier): Moderate
Source citations: 2 sources
Stack Score effect: +2 to your Stack Score (per scored synergy row).
Scope: Supplement × Supplement
Last verified: May 30, 2026

Synergy · Moderate evidence

Synergy

What is happening. B5 (pantothenic acid) is required for acetyl-CoA synthesis, which combines with choline (from Alpha-GPC) to form acetylcholine.

Mechanism. B5 → CoA → acetyl-CoA. Alpha-GPC → choline. Choline acetyltransferase combines acetyl-CoA + choline → acetylcholine. Both substrates needed for optimal ACh production.

Recommendation. Take together to support acetylcholine synthesis. B5 provides the acetyl group, Alpha-GPC provides the choline.

Sources (2)

Tayebati SK et al. Effect of choline-containing phospholipids on brain cholinergic transporters. Pharmacol Res. 2011
Sagaro GG, Traini E, Amenta F. Activity of Choline Alphoscerate on Adult-Onset Cognitive Dysfunctions: A Systematic Review and Meta-Analysis. J Alzheimers Dis. 2023. PMID 36683513

Stack Score

How this pair moves the number.

Effect on the composite score

If both Alpha-GPC and Vitamin B5 are in the same stack, this pair applies +2 to your Stack Score (per scored synergy row).

The full algorithm, the clamping rules, and four worked stacks are documented at /methodology/stack-score.

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