Trial reportNutrients2021
Development of a Portfolio Diet Score and Its Concurrent and Predictive Validity Assessed by a Food Frequency Questionnaire.
Trial report in Nutrients, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
15 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Dietary Patterns Associated With Anti-inflammatory Effects: An Umbrella Review of Systematic Reviews and Meta-analyses.Nutrition reviews · 2026Pooled it
- Trial
- The Portfolio Diet and HbA1c in Adults Living with Type 2 Diabetes Mellitus: A Patient-Level Pooled Analysis of Two Randomized Dietary Trials.Nutrients · 2024Trial
- Diet, the protective bridge connecting nutrition and cardiovascular health: A review.Food chemistry: X · 2026Review
- Adherence to Portfolio diet and risk of type 2 diabetes mellitus in a population-based prospective cohort study.Journal of diabetes and metabolic disorders · 2025Article
- Plant-Based Diets and Cardiometabolic Diseases in a Cohort of Iranian Adults: A Systematic Review of Evidence from the Tehran Lipid and Glucose Study.International journal of endocrinology and metabolism · 2025Article
- The portfolio dietary pattern and risk of cardiovascular disease mortality during 1988-2019 in US adults: a prospective cohort study.BMC medicine · 2025Article
- Portfolio diet and LDL-C in a young, multiethnic cohort: cross-sectional analyses with cumulative exposure modeling.BMC public health · 2025Article
- Association of portfolio diet score with breast cancer risk: insights from a case-control analysis.BMC cancer · 2025Article
- A Plant-Based Cholesterol-Lowering Diet Score Correlates with Serum LDL-Cholesterol Levels.Nutrients · 2024Article
- Simulation model to assess the validity of the clinical portfolio diet score used in the PortfolioDiet.app for dietary self-tracking: a secondary analysis of a randomized controlled trial in hyperlipidemic adults.Frontiers in nutrition · 2024Article
- Portfolio Diet Score and Risk of Cardiovascular Disease: Findings From 3 Prospective Cohort Studies.Circulation · 2023Article
- Article
- The Portfolio Diet and Incident Type 2 Diabetes: Findings From the Women's Health Initiative Prospective Cohort Study.Diabetes care · 2023Observational
- Prospective Association of the Portfolio Diet with All-Cause and Cause-Specific Mortality Risk in the Mr. OS and Ms. OS Study.Nutrients · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors.
Funding
Abstract
The Portfolio Diet, a plant-based portfolio of cholesterol-lowering foods, has been shown to reduce low-density lipoprotein cholesterol (LDL-C), and other cardiovascular risk factors, in randomized controlled trials (RCTs). It is not known if these beneficial effects translate to a lower incidence cardiovascular disease (CVD) risk. To support examinations between Portfolio Diet adherence and disease, a Portfolio Diet score (PDS) was developed and its predictive and concurrent validity was assessed within the Toronto Healthy Diet Study, a six-month RCT in overweight adults. Predictive validity was assessed using change in the PDS measured by food frequency questionnaire (FFQ) and concomitant change in LDL-C from baseline to six months using multiple linear regression, adjusted for potential confounders (
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