Evidence map›Paper›PMID 36771274›Full record

ArticleNutrients2023

Mixed Nuts as Healthy Snacks: Effect on Tryptophan Metabolism and Cardiovascular Risk Factors.

Jieping Yang, Rupo Lee, Zachary Schulz, Albert Hsu, Jonathan Pai, Scarlet Yang, Susanne M Henning, Jianjun Huang, Jonathan P Jacobs, David Heber and 1 more

Open access · goldAbstract read
In one paragraph

Article in Nutrients, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 3 pooled it
3.8field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 3 syntheses or guidelines pooled it, 15 citations in OpenAlex.

  1. Effects of Weight Loss Interventions on Gut Microbiota-Derived Metabolites Linked to Cardiometabolic Health: A Systematic Review and Meta-Analysis.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2026
    Pooled it
  2. Pooled it
  3. Pooled it
  4. Review
  5. The Role of Precision Nutrition in Kidney Disease.Clinical journal of the American Society of Nephrology : CJASN · 2026
    Review
  6. Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Believe It or 'Nutrients · 2023
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 2 institutions in 1 country.

Jieping YangCenter for Human Nutrition, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA.ORCID 0000-0002-0940-7662
Rupo LeeCenter for Human Nutrition, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA.
Zachary SchulzCenter for Human Nutrition, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA.ORCID 0000-0003-1645-6777
Albert HsuCenter for Human Nutrition, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA.
Jonathan PaiCenter for Human Nutrition, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA.
Scarlet YangCenter for Human Nutrition, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA.
Susanne M HenningCenter for Human Nutrition, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA.
Jianjun HuangCenter for Human Nutrition, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA.
Jonathan P JacobsThe Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA.ORCID 0000-0003-4698-0254
David HeberCenter for Human Nutrition, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA.
Zhaoping LiCenter for Human Nutrition, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA.ORCID 0000-0002-8662-4310
University of California, Los Angeles · USVA Greater Los Angeles Healthcare System · US

Funding

Modulation of the Intestinal Microbiome in Obesity by a High Protein DietIK2CX001717 · VA · VA GREATER LOS ANGELES HEALTHCARE SYSTEM · PI JACOBS, JONATHAN PATRICK · 2018 to 2023
–
BLRD VA I01 BX005796CSRD VA IK2 CX001717
6 · The paper itself

Abstract

We recently demonstrated that the consumption of mixed tree nuts (MTNs) during caloric restriction decreased cardiovascular risk factors and increased satiety. Tryptophan (Trp) metabolism has been indicated as a factor in cardiovascular disease. Here, we investigated the effect of MTNs on Trp metabolism and the link to cardiovascular risk markers. Plasma and stool were collected from 95 overweight individuals who consumed either MTNs (or pretzels) daily as part of a hypocaloric weight loss diet for 12 weeks followed by an isocaloric weight maintenance program for an additional 12 weeks. Plasma and fecal samples were evaluated for Trp metabolites by LC-MS and for gut microbiota by 16S rRNA sequencing. Trp-kynurenine metabolism was reduced only in the MTNs group during weight loss (baseline vs. week 12). Changes in Trp-serotonin (week 24) and Trp-indole (week 12) metabolism from baseline were increased in the MTNs group compared to the pretzel group. Intergroup analysis between MTN and pretzel groups does not identify significant microbial changes as indicated by alpha diversity and beta diversity. Changes in the relative abundance of genus

Indexed as

Cardiovascular DiseasesTryptophanHeart Disease Risk FactorsHumansNutsOverweightRisk FactorsRNA, Ribosomal, 16SSnacksRNA, Ribosomal, 16STryptophancardiovascular riskgut microbiometree nutstryptophan metabolismweight loss

Identifiers

PMID36771274
PMCPMC9921623
OpenAlexW4317739064

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.