Supplement Scholar
Compound

Allulose

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Allulose. Rare sugar with minimal calories.

How it works. Not metabolized; inhibits intestinal sucrase.

What the research supports. 1 graded claims. Strongest: Lowers postprandial glucose (moderate).

How much to take. Typical dose: 5–10 g.

Side effects and interactions. 1 medication interaction listed. No serious side effects listed at normal doses.

Stacking. Pairs well with A high-quality multivitamin, Omega-3 (EPA/DHA).

Common forms. Available as Capsule or softgel, Powder, Sublingual or buccal, Liposomal liquid.

Key studies. 8 studies cited. The strongest are listed with links to PubMed.

Community. Experiences from people who have tried Allulose. Anecdotes are not medical advice.

Allulose. Rare sugar with minimal calories.

Molecular structureC6H12O6 · 180.16 g/mol

What it is

Rare sugar with minimal calories.

Food sources

Endogenously produced or biosynthesized moleculeStandardized pharmaceutical- or food-grade supplementCombined with cofactors that improve absorption or activity

How it works

Not metabolized; inhibits intestinal sucrase.

Pathways

  • Not metabolized
  • inhibits intestinal sucrase

Effects

  • ↓postprandial glucose decreases

What the research supports

Lowers postprandial glucosemoderate

Strong: consistent results across large trials or meta-analyses. Moderate: several trials, mostly positive. Limited: small or mixed studies. Preclinical: animal or cell research only.

Typical dose
5–10 g
TimingConsistent daily timing recommended; split larger doses if GI tolerance is a concern.
With foodWith a meal containing fat for fat-soluble compounds; otherwise either.
Best formMost evidence is based on the capsule or softgel form.
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Side effects & interactions

Common side effects

  • GI upset at high dose

Medication interactions

Prescription medications (general)minor

Always disclose Allulose use to your prescriber — additive, antagonistic, or pharmacokinetic interactions are possible.

Check any supplement–medication combination with your pharmacist before starting.

Combines with

Pairs well

  • A high-quality multivitaminCovers micronutrient cofactors that support most supplement pathways.
  • Omega-3 (EPA/DHA)Foundational anti-inflammatory support that complements most regimens.

Common forms

  • Capsule or softgel
  • Powder
  • Sublingual or buccal
  • Liposomal liquid

Key studies

8 studies cited in total.

PubMed: Allulose — Lowers postprandial glucose ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching Allulose and "Lowers postprandial glucose". Filter by RCT, meta-analysis, or year on the results page.

PubMed: Allulose — randomized controlled trial ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching Allulose and "randomized controlled trial". Filter by RCT, meta-analysis, or year on the results page.

PubMed: Allulose — meta-analysis ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching Allulose and "meta-analysis". Filter by RCT, meta-analysis, or year on the results page.

Discussion

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