Research Summary
Analyzed using Evidence Intelligence™

Processed meat meal impairs hormone responses in diabetes

Last updated August 22, 2026

Key finding

The M-meal resulted in a higher postprandial increase in lipids in both groups (p<0.001).

This study compared the acute effects of a processed meat meal versus a vegan meal on gastrointestinal hormone responses in individuals with type 2 diabetes.

Quick read

Study at a glance

The essential study design details in one scan.

EvidenceScore™

Moderate

Study type

RCTs

Follow-up

Short-Term (≤3 mo)

Risk of bias

Some Concerns

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Plain-language summary

What this paper says

A plain-language read of the study’s main message and where it applies.

Study focus

This study compared the acute effects of a processed meat meal versus a vegan meal on gastrointestinal hormone responses in individuals with type 2 diabetes.

Clinical relevance

Understanding the differential effects of meal types on metabolic responses is crucial for managing type 2 diabetes. This study highlights how dietary choices can significantly influence hormone levels and metabolic health, suggesting that incorporating plant-based meals may be beneficial for individuals with diabetes.

Keep in mind

Limited sample size may affect generalizability. Short-term study design may not reflect long-term dietary impacts. Lack of diverse population representation.

Published in

Journal Reference

Publication details and source links for this paper.

Lenka B, Hana K, Hana M, et al. Acute Effects of Processed Meat vs. Vegan Meal on Gastrointestinal Hormone Responses in Type 2 Diabetes. PLoS ONE. 2014;9(9):e107561. doi:10.1371/journal.pone.0107561

Main Effects

The M-meal resulted in a higher postprandial increase in lipids (p<0.001).

The M-meal caused persistent postprandial hyperinsulinemia in diabetes patients (p<0.001).

The M-meal was associated with lower concentrations of ghrelin, GIP, PYY, and PP in T2D patients (p<0.001).

Evidence network

How this study fits

Understand where this research contributes within the broader evidence network.

Evidence Context

This study contributes evidence to Processed hamburger meat meal (M-meal), Vegan meal (V-meal) and GIP concentration after M-meal in T2D patients, Increase in lipoperoxidation levels in T2D patients after M-meal compared to V-meal, Lower PYY concentration after M-meal in T2D patients, and 5 more.

Primary intervention

Processed hamburger meat meal (M-meal)

Primary outcomes

  • GIP concentration after M-meal in T2D patients
  • Increase in lipoperoxidation levels in T2D patients after M-meal compared to V-meal
  • Lower PYY concentration after M-meal in T2D patients

Evidence relationships

Intervention and outcome relationships this study adds to the evidence network.

8
Evidence pairs
8
Relationships
2
Evidence topics
contributes_evidence

Editorial context

Why this study matters

See why this paper is useful beyond its individual results.

Evidence network role

This section describes how the study fits into the current evidence network. It does not determine whether an intervention works on its own.

Moderate contributionModerate confidenceNetwork score: 64

2

Related topics

8

Evidence pairs

886

Related studies

High relevance in at least one topic

Why it is useful

  • Contributes to 8 evidence relationships
  • Includes primary outcome data
  • Linked to 2 direct semantic evidence topics

Topic contributions

Evidence topic

Contributes evidence

Evidence topic

Contributes evidence

Add related evidence to your Evidence Tracker

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Primary evidence

Evidence topic

Fasting Blood Glucose

matched_outcome

Related evidence

Evidence topic

Glycemic Control

Save evidence

Core evidence

Study findings

The primary outcomes reported in this study.

GIP concentration after M-meal in T2D patients

Processed hamburger meat meal (M-meal) → GIP concentration after M-meal in T2D patients

Processed hamburger meat meal (M-meal) → GIP concentration after M-meal in T2D patients

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
50
Neutral
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Increase in lipoperoxidation levels in T2D patients after M-meal compared to V-meal

Processed hamburger meat meal (M-meal) → Increase in lipoperoxidation levels in T2D patients after M-meal compared to V-meal

Processed hamburger meat meal (M-meal) → Increase in lipoperoxidation levels in T2D patients after M-meal compared to V-meal

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
100
Very Positive
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Lower concentrations of PP after M-meal in T2D patients

Processed hamburger meat meal (M-meal) → Lower concentrations of PP after M-meal in T2D patients

Processed hamburger meat meal (M-meal) → Lower concentrations of PP after M-meal in T2D patients

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
50
Neutral
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Lower ghrelin concentration after M-meal in healthy subjects

Processed hamburger meat meal (M-meal) → Lower ghrelin concentration after M-meal in healthy subjects

Processed hamburger meat meal (M-meal) → Lower ghrelin concentration after M-meal in healthy subjects

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
100
Very Positive
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Lower PYY concentration after M-meal in T2D patients

Processed hamburger meat meal (M-meal) → Lower PYY concentration after M-meal in T2D patients

Processed hamburger meat meal (M-meal) → Lower PYY concentration after M-meal in T2D patients

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
50
Neutral
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Persistent postprandial hyperinsulinemia in patients with diabetes

Processed hamburger meat meal (M-meal) → Persistent postprandial hyperinsulinemia in patients with diabetes

Processed hamburger meat meal (M-meal) → Persistent postprandial hyperinsulinemia in patients with diabetes

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
100
Very Positive
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Postprandial lipidemia

Processed hamburger meat meal (M-meal) → Postprandial lipidemia

Processed hamburger meat meal (M-meal) → Postprandial lipidemia

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
100
Very Positive
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Blood glucose

Vegan meal (V-meal) → Blood glucose

Vegan meal (V-meal) → Blood glucose

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
50
Neutral
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Evidence Library

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evidence suggest

Evidence Suggest

  • Processed meat meal led to a significant increase in lipids (p<0.001).
  • Postprandial hyperinsulinemia was persistent after the M-meal (p<0.001).
  • The M-meal resulted in lower ghrelin, GIP, PYY, and PP concentrations in T2D patients (p<0.001).
who this applies

Who this applies to

  • Adults diagnosed with type 2 diabetes.
  • Individuals interested in dietary impacts on metabolic health.
keep in mind

Keep in Mind

  • Results may not apply to non-diabetic individuals.
  • Further research is needed to explore long-term effects.
  • Dietary responses can vary based on individual health status.
between the lines

Between the Lines

  • Limited sample size may affect generalizability.
  • Short-term study design may not reflect long-term dietary impacts.
  • Lack of diverse population representation.

Evidence Library

Build your evidence library

Save research, organize studies, and quickly find important evidence again.

Connected Evidence

Explore related studies, evidence collections, and research questions.

Relationships organized using the Dediabetes Evidence Intelligence™ framework.

This study contributes to evidence on Processed hamburger meat meal (M-meal) and Lower ghrelin concentration after M-meal in healthy subjects, Processed hamburger meat meal (M-meal) and GIP concentration after M-meal in T2D patients.

Related evidence relationships

Explore in Evidence Explorer

This study contributes to the evidence on the following intervention-outcome relationships.

Included in these evidence collections

Curated evidence collections and hubs this study is part of.

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Questions answered by this study

Generated from the study's connected evidence using Evidence Intelligence™.

What evidence is available on Processed hamburger meat meal (M-meal) and increase in lipoperoxidation levels in t2d patients after m-meal compared to v-meal?

Emerging Evidence

Processed hamburger meat meal (M-meal) appears to improve increase in lipoperoxidation levels in t2d patients after m-meal compared to v-meal.

ConsistencyScore™: Consistency cannot yet be determined from the available evidence.

Ranked evidence signals

  1. 1

    Increase in lipoperoxidation levels in T2D patients after M-meal compared to V-meal

    EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study

Why this answer: This answer is based on a single supporting study.

Limitations

  • Only one supporting study is available.
1 supporting study

Does Processed hamburger meat meal (M-meal) improve lower ghrelin concentration after m-meal in healthy subjects?

Emerging Evidence

Processed hamburger meat meal (M-meal) appears to improve lower ghrelin concentration after m-meal in healthy subjects.

ConsistencyScore™: Consistency cannot yet be determined from the available evidence.

Ranked evidence signals

  1. 1

    Lower ghrelin concentration after M-meal in healthy subjects

    EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study

Why this answer: This answer is based on a single supporting study.

Limitations

  • Only one supporting study is available.
1 supporting study

Does Processed hamburger meat meal (M-meal) improve persistent postprandial hyperinsulinemia in patients with diabetes?

Emerging Evidence

Processed hamburger meat meal (M-meal) appears to improve persistent postprandial hyperinsulinemia in patients with diabetes.

ConsistencyScore™: Consistency cannot yet be determined from the available evidence.

Ranked evidence signals

  1. 1

    Persistent postprandial hyperinsulinemia in patients with diabetes

    EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study

Why this answer: This answer is based on a single supporting study.

Limitations

  • Only one supporting study is available.
1 supporting study

Does Processed hamburger meat meal (M-meal) improve postprandial lipidemia?

Emerging Evidence

Processed hamburger meat meal (M-meal) appears to improve postprandial lipidemia.

ConsistencyScore™: Consistency cannot yet be determined from the available evidence.

Ranked evidence signals

  1. 1

    Postprandial lipidemia

    EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study

Why this answer: This answer is based on a single supporting study.

Limitations

  • Only one supporting study is available.
1 supporting study
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