Cited by 53Muscle metabolism and nutritionProtein Hydrolysis and Bioactive PeptidesProteins in Food Systems

Exploring Health-Promoting Attributes of Plant Proteins as a Functional Ingredient for the Food Sector: A Systematic Review of Human Interventional Studies

Open access
Lonnie, Marta, Laurie, Ieva, Myers, Madeleine, Horgan, Graham, Russell, Wendy, Johnstone, Alexandra·2020·Nutrients

Abstract

The potential beneficial effects of plant-based diets on human health have been extensively studied. However, the evidence regarding the health effects of extracted plant-based proteins as functional ingredients, other than soya, is scarce. The aim of this review was to compile evidence on the effects of extracted protein from a wide range of traditional and novel plant sources on glycemic responses, appetite, body weight, metabolic, cardiovascular and muscle health. A comprehensive search of PubMed, EMBASE and The Cochrane Central Register of Controlled Trials (CENTRAL) was conducted through 23 and 27 March 2020 for randomized controlled trials that featured any of the following 18 plant protein sources: alfalfa, duckweed, buckwheat, chickpea, fava bean, hemp, lentil, lupin, mushroom, oat, pea, potato, pumpkin, quinoa, rapeseed, rice, sacha inchi, sunflower. Only interventions that investigated concentrated, isolated or hydrolysed forms of dietary protein were included. Searched health outcome measures were: change in blood glucose, insulin, satiety hormones concentration, subjective assessment of appetite/satiety, change in blood lipids concentration, blood pressure, body weight and muscle health parameters. Acute and sub-chronic studies were considered for inclusion. Applying the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) approach we identified 1190 records. Twenty-six studies met the inclusion criteria. Plant protein sources used in interventions were most often pea (n = 16), followed by lupin (n = 4), fava bean (n = 2), rice (n = 2), oat (n = 2), hemp (n = 2) and lentil (n = 1). Satiety and postprandial glycemic response were the most frequently reported health outcomes (n = 18), followed by blood lipids (n = 6), muscle health (n = 5), body weight (n = 5) and blood pressure (n = 4). No studies on the remaining plant proteins in the extracted form were identified through the search. Most studies confirmed the health-promoting effect of identified extracted plant protein sources across glycemic, appetite, cardiovascular and muscular outcomes when compared to baseline or non-protein control. However, the current evidence is still not sufficient to formulate explicit dietary recommendations. In general, the effects of plant protein were comparable (but not superior) to protein originating from animals. This is still a promising finding, suggesting that the desired health effects can be achieved with more sustainable, plant alternatives. More methodologically homogenous research is needed to formulate and validate evidence-based health claims for plant protein ingredients. The relevance of these findings are discussed for the food sector with supporting market trends.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.3390/nu12082291

Cites

80 of 81 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • A recent systematic review of plant protein sources other than soy found that most trials reported benefits of plant protein ingredients by examining postprandial concentrations of blood glucose, insulin, and/or appetite regulating hormones, but studies that compared animal to plant protein showed no benefit of plant protein on regulating postprandial glycemia.

    “A recent systematic review examined the bioactive properties of plant protein sources other than soy, including protein from pea, lupin, fava bean, rice, oat, hemp, and lentil [90]. Most trials reported the benefits of plant protein ingredients by examining postprandial concentrations of blood glucose, insulin, and/or appetite regulating hormones. While there was heterogeneity in results, studies”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

1 of the 82 references couldn’t be matched to a known paper.

Research works printed but not linked: 2

  1. [21]Nadathur S.R. Wanasundara J.P.D. Scanlin L. Sustainable Protein Sources Elsevier London, UK 2017 1 9
  2. [58]Lefranc-Millot C. Rodriguez B. Brunger L. Re R. Guerin-Demraux L. Impact of the vegetable pea protein NUTRALYS® on Satiety, Food intake and Gut Hormones in humans Annals of Nutrition and Metabolism Karger Basel, Switzerland 2015 67 433

Cited by

Sorted by citations

Authors
Lonnie, M., Laurie, I., Myers, M., Horgan, G., Russell, W., & Johnstone, A.
Affiliations
  • University of Aberdeen (GB)
  • Tate & Lyle (United Kingdom) (GB)
Corresponding author
Lonnie, Marta
Venue
Nutrients
Publisher
MDPI AG
Published
2020-07-30
Volume
12
Issue
8
Pages
2291
ISSN
2072-6643 (ISSN-L)
OpenAlex
W3045638634
Cited by
53
References
82
Citations by year
2026: 8 · 2025: 9 · 2024: 11 · 2023: 7 · 2022: 12 · 2021: 3 · 2020: 2
FWCI
0.70
Type
journal article
Language
en
Open access
Locations
  • Nutrients (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Aberdeen University Research Archive (Aberdeen University) (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Tate & Lyle PLC, 1 Kingsway, London, WC2B 6AT, United Kingdom (A16920 / TL 4500024884)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Hydrolysis and Bioactive Peptides
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Proteins in Food Systems
Keywords
plant proteins, functional food ingredients, pea protein, lupin protein, rice protein, oat protein, hemp protein, lentil protein, satiety, postprandial glycemic response, serum lipids, blood pressure, body weight, muscle health, cardiovascular health, isolated proteins, plant-based diet
MeSH terms
Diet, Healthy, Food Ingredients, Adult, Appetite, Blood Glucose, Blood Pressure, Body Weight, Female, Humans, Male, Satiation, Plant Proteins, Dietary, Randomized Controlled Trials as Topic, Muscle, Skeletal, Postprandial Period, Young Adult, Functional Food

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review