Non-Cochrane · aetiology · PM41696934

Human Milk Bioactive Compounds and Allergic- and Infectious-Related Infant Outcomes: A Systematic Review.

Flores Ventura Eduard, Guseva Daria, Hübert Vanessa, et al. · Molecular nutrition & food research · 2026 · PubMed · doi:10.1002/mnfr.70390

Findings

Population Breastfed infants whose mothers provided human milk samples

48 findings

Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Total omega-6 content, infants with vs without atopic dermatitis
Mature milk · Mature milk; common-effect model
SMD -0.13 [-0.39, 0.12]
GRADE not reported
2 studies · 261 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Linoleic acid (18:2n-6) content, infants with vs without atopic dermatitis
Colostrum and mature milk · All lactation stages; common-effect model
SMD -0.07 [-0.26, 0.12]
GRADE not reported
3 studies · 495 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Linoleic acid (18:2n-6) content, infants with vs without atopic dermatitis
Mature milk · Mature milk; common-effect model
SMD -0.12 [-0.38, 0.13]
GRADE not reported
2 studies · 261 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Total omega-6 content, infants with vs without atopic dermatitis
Colostrum and mature milk · All lactation stages; random-effects model
SMD -0.54 [-1.30, 0.22]
GRADE not reported
3 studies · 495 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Total omega-6 content, infants with vs without atopic dermatitis
Colostrum and mature milk · All lactation stages; common-effect model
SMD -0.17 [-0.36, 0.02]
GRADE not reported
3 studies · 495 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Total omega-3 content, infants with vs without atopic dermatitis
Colostrum and mature milk · All lactation stages; common-effect model
SMD 0.10 [-0.09, 0.29]
GRADE not reported
3 studies · 495 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Linoleic acid (18:2n-6) content, infants with vs without atopic dermatitis
Colostrum · Colostrum; common-effect model
SMD 0.00 [-0.28, 0.28]
GRADE not reported
2 studies · 234 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Total omega-6 content, infants with vs without atopic dermatitis
Colostrum · Colostrum; random-effects model
SMD -0.30 [-0.82, 0.22]
GRADE not reported
2 studies · 234 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Ratio n-6:n-3 content, infants with vs without atopic dermatitis
Colostrum and mature milk · All lactation stages; common-effect model
SMD -0.24 [-0.43, -0.05]
GRADE not reported
3 studies · 495 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Ratio n-6:n-3 content, infants with vs without atopic dermatitis
Mature milk · Mature milk; common-effect model
SMD -0.03 [-0.28, 0.23]
GRADE not reported
2 studies · 261 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Arachidonic acid (20:4n-6) content, infants with vs without atopic dermatitis
Colostrum and mature milk · All lactation stages; common-effect model
SMD -0.18 [-0.37, 0.01]
GRADE not reported
3 studies · 495 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Dihomo-gamma-linolenic acid (DGLA, 20:3n-6) content, infants with vs without atopic dermatitis
Colostrum and mature milk · All lactation stages; random-effects model
SMD -0.47 [-1.00, 0.06]
GRADE not reported
3 studies · 495 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Ratio n-6:n-3 content, infants with vs without atopic dermatitis
Mature milk · Mature milk; random-effects model
SMD 0.85 [-1.34, 3.04]
GRADE not reported
2 studies · 261 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Linolenic acid (18:3n-3) content, infants with vs without atopic dermatitis
Colostrum and mature milk · All lactation stages; random-effects model
SMD -0.56 [-1.79, 0.67]
GRADE not reported
3 studies · 495 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Eicosapentaenoic acid (EPA, 20:5n-3) content, infants with vs without atopic dermatitis
Mature milk · Mature milk; common-effect model
SMD -0.03 [-0.29, 0.23]
GRADE not reported
2 studies · 261 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Total omega-3 content, infants with vs without atopic dermatitis
Mature milk · Mature milk; random-effects model
SMD -1.22 [-4.06, 1.62]
GRADE not reported
2 studies · 261 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Arachidonic acid (20:4n-6) content, infants with vs without atopic dermatitis
Mature milk · Mature milk; common-effect model
SMD -0.11 [-0.37, 0.14]
GRADE not reported
2 studies · 261 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Total omega-3 content, infants with vs without atopic dermatitis
Colostrum · Colostrum; common-effect model
SMD 0.23 [-0.05, 0.51]
GRADE not reported
2 studies · 234 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Total omega-3 content, infants with vs without atopic dermatitis
Mature milk · Mature milk; common-effect model
SMD -0.02 [-0.28, 0.24]
GRADE not reported
2 studies · 261 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Eicosapentaenoic acid (EPA, 20:5n-3) content, infants with vs without atopic dermatitis
Colostrum · Colostrum; common-effect model
SMD -0.24 [-0.52, 0.05]
GRADE not reported
2 studies · 234 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Linoleic acid (18:2n-6) content, infants with vs without atopic dermatitis
Colostrum · Colostrum; random-effects model
SMD -0.02 [-0.34, 0.31]
GRADE not reported
2 studies · 234 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Linolenic acid (18:3n-3) content, infants with vs without atopic dermatitis
Colostrum and mature milk · All lactation stages; common-effect model
SMD 0.05 [-0.14, 0.24]
GRADE not reported
3 studies · 495 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Eicosapentaenoic acid (EPA, 20:5n-3) content, infants with vs without atopic dermatitis
Colostrum · Colostrum; random-effects model
SMD 0.00 [-1.10, 1.10]
GRADE not reported
2 studies · 234 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Total omega-6 content, infants with vs without atopic dermatitis
Mature milk · Mature milk; random-effects model
SMD -0.83 [-2.63, 0.97]
GRADE not reported
2 studies · 261 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Dihomo-gamma-linolenic acid (DGLA, 20:3n-6) content, infants with vs without atopic dermatitis
Colostrum · Colostrum; random-effects model
SMD -0.39 [-1.22, 0.44]
GRADE not reported
2 studies · 234 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Dihomo-gamma-linolenic acid (DGLA, 20:3n-6) content, infants with vs without atopic dermatitis
Mature milk · Mature milk; common-effect model
SMD -0.27 [-0.52, -0.01]
GRADE not reported
2 studies · 261 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Arachidonic acid (20:4n-6) content, infants with vs without atopic dermatitis
Colostrum · Colostrum; random-effects model
SMD -0.12 [-0.84, 0.60]
GRADE not reported
2 studies · 234 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Linoleic acid (18:2n-6) content, infants with vs without atopic dermatitis
Colostrum and mature milk · All lactation stages; random-effects model
SMD -0.37 [-1.10, 0.35]
GRADE not reported
3 studies · 495 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Total omega-3 content, infants with vs without atopic dermatitis
Colostrum and mature milk · All lactation stages; random-effects model
SMD -0.46 [-1.82, 0.90]
GRADE not reported
3 studies · 495 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Total omega-3 content, infants with vs without atopic dermatitis
Colostrum · Colostrum; random-effects model
SMD 0.23 [-0.05, 0.51]
GRADE not reported
2 studies · 234 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Ratio n-6:n-3 content, infants with vs without atopic dermatitis
Colostrum · Colostrum; random-effects model
SMD -0.53 [-0.92, -0.14]
GRADE not reported
2 studies · 234 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Ratio n-6:n-3 content, infants with vs without atopic dermatitis
Colostrum · Colostrum; common-effect model
SMD -0.49 [-0.77, -0.21]
GRADE not reported
2 studies · 234 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Linolenic acid (18:3n-3) content, infants with vs without atopic dermatitis
Mature milk · Mature milk; random-effects model
SMD -1.12 [-3.66, 1.43]
GRADE not reported
2 studies · 261 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Dihomo-gamma-linolenic acid (DGLA, 20:3n-6) content, infants with vs without atopic dermatitis
Colostrum · Colostrum; common-effect model
SMD -0.22 [-0.50, 0.06]
GRADE not reported
2 studies · 234 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Linoleic acid (18:2n-6) content, infants with vs without atopic dermatitis
Mature milk · Mature milk; random-effects model
SMD -0.75 [-2.41, 0.90]
GRADE not reported
2 studies · 261 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Total omega-6 content, infants with vs without atopic dermatitis
Colostrum · Colostrum; common-effect model
SMD -0.22 [-0.50, 0.06]
GRADE not reported
2 studies · 234 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Eicosapentaenoic acid (EPA, 20:5n-3) content, infants with vs without atopic dermatitis
Colostrum and mature milk · All lactation stages; common-effect model
SMD -0.12 [-0.31, 0.07]
GRADE not reported
3 studies · 495 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Dihomo-gamma-linolenic acid (DGLA, 20:3n-6) content, infants with vs without atopic dermatitis
Colostrum and mature milk · All lactation stages; common-effect model
SMD -0.24 [-0.43, -0.06]
GRADE not reported
3 studies · 495 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Dihomo-gamma-linolenic acid (DGLA, 20:3n-6) content, infants with vs without atopic dermatitis
Mature milk · Mature milk; random-effects model
SMD -0.61 [-1.63, 0.41]
GRADE not reported
2 studies · 261 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Linolenic acid (18:3n-3) content, infants with vs without atopic dermatitis
Mature milk · Mature milk; common-effect model
SMD -0.06 [-0.32, 0.20]
GRADE not reported
2 studies · 261 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Arachidonic acid (20:4n-6) content, infants with vs without atopic dermatitis
Mature milk · Mature milk; random-effects model
SMD -0.68 [-2.20, 0.84]
GRADE not reported
2 studies · 261 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Linolenic acid (18:3n-3) content, infants with vs without atopic dermatitis
Colostrum · Colostrum; random-effects model
SMD -0.05 [-1.12, 1.03]
GRADE not reported
2 studies · 234 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Arachidonic acid (20:4n-6) content, infants with vs without atopic dermatitis
Colostrum and mature milk · All lactation stages; random-effects model
SMD -0.36 [-1.06, 0.34]
GRADE not reported
3 studies · 495 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Eicosapentaenoic acid (EPA, 20:5n-3) content, infants with vs without atopic dermatitis
Colostrum and mature milk · All lactation stages; random-effects model
SMD -0.54 [-1.86, 0.77]
GRADE not reported
3 studies · 495 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Eicosapentaenoic acid (EPA, 20:5n-3) content, infants with vs without atopic dermatitis
Mature milk · Mature milk; random-effects model
SMD -1.17 [-3.88, 1.54]
GRADE not reported
2 studies · 261 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Ratio n-6:n-3 content, infants with vs without atopic dermatitis
Colostrum and mature milk · All lactation stages; random-effects model
SMD 0.11 [-1.06, 1.28]
GRADE not reported
3 studies · 495 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Linolenic acid (18:3n-3) content, infants with vs without atopic dermatitis
Colostrum · Colostrum; common-effect model
SMD 0.18 [-0.10, 0.47]
GRADE not reported
2 studies · 234 participants
Human milk fatty acid concentration (exposure) in infants who developed atopic dermatitisHuman milk fatty acid concentration in infants without atopic dermatitisHuman milk Arachidonic acid (20:4n-6) content, infants with vs without atopic dermatitis
Colostrum · Colostrum; common-effect model
SMD -0.26 [-0.54, 0.03]
GRADE not reported
2 studies · 234 participants

Included primary studies 35

Open in Studies
StudyYearAlso included byOutcomes it informs hereTrial data
Aparicio 2020
Microbiological and Immunological Markers in Milk and Infant Feces for Common Gastrointestinal Disorders: A Pilot Study.
PMID:32121004
2020this review onlynot statednot extracted yet
Berdi 2019
Immune components of early breastmilk: Association with maternal factors and with reported food allergy in childhood.
PMID:30368940
2019this review onlynot statednot extracted yet
Böttcher 2008
Low breast milk TGF-beta2 is induced by Lactobacillus reuteri supplementation and associates with reduced risk of sensitization during…
PMID:18221472
2008this review onlynot statednot extracted yet
Chen 2025
Human milk oligosaccharides in Chinese lactating mothers and relationship with allergy development in offspring.
PMID:37061931
2025this review onlynot statednot extracted yet
Dai 2023
Breastfeeding enrichment of B. longum subsp. infantis mitigates the effect of antibiotics on the microbiota and childhood asthma risk.
PMID:36603585
2023this review onlynot statednot extracted yet
Duchén 2000
Human milk polyunsaturated long-chain fatty acids and secretory immunoglobulin A antibodies and early childhood allergy.
PMID:10768733
2000this review onlynot statednot extracted yet
Dzidic 2020
Allergy development is associated with consumption of breastmilk with a reduced microbial richness in the first month of life.
PMID:31736150
2020this review onlynot statednot extracted yet
Fang 2024
Networks of human milk microbiota are associated with host genomics, childhood asthma, and allergic sensitization.
PMID:39293435
2024this review onlynot statednot extracted yet
Glass 1983
Protection against cholera in breast-fed children by antibodies in breast milk.
PMID:6843632
1983this review onlynot statednot extracted yet
Hogendorf 2013
Is there any association between secretory IgA and lactoferrin concentration in mature human milk and food allergy in breastfed children.
PMID:23749695
2013this review onlynot statednot extracted yet
Hoppu 2005
Vitamin C in breast milk may reduce the risk of atopy in the infant.
PMID:15340369
2005this review onlynot statednot extracted yet
Hoppu 2005
Breast milk fatty acid composition is associated with development of atopic dermatitis in the infant.
PMID:16131990
2005this review onlynot statednot extracted yet
Hua 2019
Association of maternal allergy with human milk soluble CD14 and fatty acids, and early childhood atopic dermatitis.
PMID:30561094
2019this review onlynot statednot extracted yet
Järvinen 2014
Role of maternal elimination diets and human milk IgA in the development of cow's milk allergy in the infants.
PMID:24164317
2014this review onlynot statednot extracted yet
Jepsen 2016
High breast milk IL-1β level is associated with reduced risk of childhood eczema.
PMID:27251401
2016this review onlynot statednot extracted yet
Jêvinen 2000
Does low IgA in human milk predispose the infant to development of cow's milk allergy?
PMID:11004235
2000this review onlynot statednot extracted yet
Le Doare 2017
SIgA, TGF-β1, IL-10, and TNFα in Colostrum Are Associated with Infant Group B Streptococcus Colonization.
PMID:29109718
2017this review onlynot statednot extracted yet
Lif Holgerson 2023
The breast milk and childhood gastrointestinal microbiotas and disease outcomes: a longitudinal study.
PMID:36216869
2023this review onlynot statednot extracted yet
Logan 2017
New approach shows no association between maternal milk fatty acid composition and childhood wheeze or asthma.
PMID:28306160
2017this review onlynot statednot extracted yet
Logan 2019
Soluble CD14 concentration in human breast milk and its potential role in child atopic dermatitis: Results of the Ulm Birth Cohort Studies.
PMID:30084516
2019this review onlynot statednot extracted yet
Miliku 2021
Sex-specific associations of human milk long-chain polyunsaturated fatty acids and infant allergic conditions.
PMID:33711184
2021this review onlynot statednot extracted yet
Morrow 2004
Human milk oligosaccharides are associated with protection against diarrhea in breast-fed infants.
PMID:15343178
2004this review onlynot statednot extracted yet
Oddy 2006
Atopy, eczema and breast milk fatty acids in a high-risk cohort of children followed from birth to 5 yr.
PMID:16426248
2006this review onlynot statednot extracted yet
Reichardt 2004
Fatty acids in colostrum from mothers of children at high risk of atopy in relation to clinical and laboratory signs of allergy in the…
PMID:15005762
2004this review onlynot statednot extracted yet
Rio‐Aige 2022
Galectins-1, -3 and -9 Are Present in Breast Milk and Have a Role in Early Life Development.
PMID:36297023
2022this review onlynot statednot extracted yet
Rosenlund 2016
Breastmilk fatty acids in relation to sensitization - the ALADDIN birth cohort.
PMID:27043329
2016this review onlynot statednot extracted yet
Seppo 2021
Infant gut microbiome is enriched with Bifidobacterium longum ssp. infantis in Old Order Mennonites with traditional farming lifestyle.
PMID:33905556
2021this review onlynot statednot extracted yet
Simpson 2015
Human Breast Milk miRNA, Maternal Probiotic Supplementation and Atopic Dermatitis in Offspring.
PMID:26657066
2015this review onlynot statednot extracted yet
Siziba 2021
Associations of Human Milk Oligosaccharides With Otitis Media and Lower and Upper Respiratory Tract Infections up to 2 Years: The Ulm…
PMID:34760912
2021this review onlynot statednot extracted yet
Snijders 2006
Cytokines and soluble CD14 in breast milk in relation with atopic manifestations in mother and infant (KOALA Study).
PMID:17177685
2006this review onlynot statednot extracted yet
Tellez 2003
Antibodies in mother's milk protect children against giardiasis.
PMID:12875519
2003this review onlynot statednot extracted yet
Van Elten 2015
Breast milk fatty acid composition has a long-term effect on the risk of asthma, eczema, and sensitization.
PMID:26214160
2015this review onlynot statednot extracted yet
Wachman 2023
Maternal, Infant, and Breast Milk Antibody Response Following COVID-19 Infection in Early Versus Late Gestation.
PMID:36729773
2023this review onlynot statednot extracted yet
Wang 2022
Association Between Breastmilk Microbiota and Food Allergy in Infants.
PMID:35096637
2021this review onlynot statednot extracted yet
Wu 2021
Breast milk flora plays an important role in infantile eczema: cohort study in Northeast China.
PMID:33735474
2021this review onlynot statednot extracted yet

Review question

ElementPlanned (methods)Found (results)
PopulationHealthy mother-infant pairs; children from birth to 18 years (excluding preterm, very low birth weight, diseased-only mothers)9,298 mother-infant dyads in 34 studies
InterventionHuman milk bioactive compounds and microbiota (exposure), including fatty acids, oligosaccharides, immunoglobulins, cytokinesHM fatty acids (n=23 studies), HMOs (n=12), microbiota (n=14), cytokines (n=13), immunoglobulins
ComparisonChildren not exclusively breastfed / different levels of HM componentsInfants with versus without the outcome; differing HM compound levels
OutcomesClinically defined allergy-related (food allergy, sensitization, eczema, atopic dermatitis, asthma) and infectious-related infant outcomesFood allergy (n=15), sensitization (n=8), atopic dermatitis (n=11), eczema, asthma, diarrhoea, respiratory infections, otitis media, dental caries
Study designsObservational longitudinal studies, cross-sectional studies and trials in humansMostly longitudinal prospective studies; 3 cross-sectional; 3 RCTs
TimingFollow-up from birth up to 18 years6 months to 14 years follow-up