Reviewed clinical summary · Source-linked · Educational use only

Can Mycoprotein and Guar Gum Lower Blood Sugar in Type 2 Diabetes?

Hormone Insight visual abstract summarising mycoprotein and guar gum effects on postprandial glucose in type 2 diabetes.

Clinical Bottom Line

Summary: In adults with type 2 diabetes (T2D), mycoprotein and guar gum significantly reduced postprandial glucose (PG) compared to a control group, though it was associated with minimal and clinically insignificant gastrointestinal side effects. PICO Description Population Adults with type 2 diabetes…

Summary: In adults with type 2 diabetes (T2D), mycoprotein and guar gum significantly reduced postprandial glucose (PG) compared to a control group, though it was associated with minimal and clinically insignificant gastrointestinal side effects.
PICO Description
Population Adults with type 2 diabetes from white European and South Asian ethnic groups.
Intervention Mycoprotein and guar gum supplementation during meals.
Comparison A control group receiving meals without mycoprotein and guar gum supplementation.
Outcome Significant reductions in postprandial glucose levels were observed in the mycoprotein and guar gum group compared to controls. The intervention yielded similar benefits independent of ethnicity and was associated with minimal gastrointestinal side effects.
RCT Nutr Diabetes · 2025

Mycoprotein and guar gum on postprandial glucose in T2D

Crossover RCT · type 2 diabetes · acute

Trial design
T2D adults, n=18 Enrolled & assessed RANDOMISED Crossover Mycoprotein + guar gum Active supplements n = 18 Control Soy/chicken, no gum n = 18 Postprandial glucose iAUC (mmol/L·min)
Between-group effect (95% CI)
0 (no difference) -280 40 Guar gum vs none-197.35 ✓Mycoprotein vs chicken-129.84 ✓ mmol/L·min · ✓ = significant
Guar gum vs none
-197.4
PG iAUC, p<0.001
Mycoprotein vs chicken
-129.8
PG iAUC, p=0.002
Both effects
Significant
95% CI excludes 0
Appetite outcomes
No effect
GLP-1, PYY, intake
⬡ Bottom Line

In adults with type 2 diabetes, both mycoprotein (vs chicken) and guar gum (vs none) independently and significantly lowered the postprandial glucose response, with benefits seen in white European and south Asian participants and no meaningful effect on appetite.

Source: Anna Cherta-Murillo, et al. “Investigating the effects of mycoprotein and guar gum on postprandial glucose in type 2 diabetes: a double-blind randomised controlled trial.” Read article here.

Educational use: Hormone Insight is intended for healthcare professionals and learners. Interpret each summary alongside the primary source, local guidance, and patient-specific clinical judgement.

Subscribe now

Welcome to Hormone Insight. Our mission is to support clinical decision-making with accessible, evidence-based insights from recent studies and trials.

© 2024-2026 Hormone Insight. All rights reserved.