Evidence mapPaperPMID 24477298Full record

Trial reportThe Journal of nutrition2014

Dietary protein distribution positively influences 24-h muscle protein synthesis in healthy adults.

Madonna M Mamerow, Joni A Mettler, Kirk L English, Shanon L Casperson, Emily Arentson-Lantz, Melinda Sheffield-Moore, Donald K Layman, Douglas Paddon-Jones

2 registry-linked trialsOpen access · bronzeAbstract readRandomized Controlled Trial
In one paragraph

Trial report in The Journal of nutrition, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 182 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
182citing papers in PubMed, 4 pooled it
18.7field-weighted citation impact, top 1% 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.

NCT02614729 nacompletednot on this map

A Randomized Controlled Feeding, Crossover Trial to Assess the Appetitive and Cognitive Effects of Daily Beef Consumption in Healthy, Overweight Women

TypeinterventionalSponsorUniversity of Missouri-ColumbiaRan2014 to 2015Enrolled35ConditionsObesity, Poor Glycemic Control, Dietary InterventionsArmsStandard Protein-Plant, Even Distribution (SP-PLANT-EVEN), Standard Protein-Beef, Even Distribution (SP-BEEF-EVEN), High Protein-Beef, Even Distribution (HP-BEEF-EVEN), High Protein-Beef, Uneven Distribution (HP-BEEF-UNEVEN)
NCT07245199 nanot yet recruitingnot on this mapstarted 2026, after this paper: background citation

Protein Intake Distribution to Support Muscle Anabolism in Healthy Young Adults

TypeinterventionalSponsorMaastricht University Medical CenterRan2026 to 2027Enrolled36ConditionsNo Condition, Healthy IndividualsArmsprotein intake, Protein intake
3 · Its place in the literature

Who cites it

182 citing papers in PubMed, 4 syntheses or guidelines pooled it, 416 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Effect of protein supplementation on hip bone mineral density, cortical thickness, and bone strength in older adult participants during a caloric restriction and aerobic exercise weight loss intervention: a randomized controlled trial.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2026
    Trial
  6. Trial
  7. Trial
  8. Trial
  9. Trial
  10. Trial
  11. Trial
  12. Trial
  13. Trial
  14. Trial
  15. Trial
  16. Trial
  17. Trial
  18. Trial
  19. Trial
  20. Trial

122 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 1 country.

Madonna M MamerowDivision of Rehabilitation Sciences.
Joni A MettlerDivision of Rehabilitation Sciences.
Kirk L EnglishDivision of Rehabilitation Sciences.
Shanon L CaspersonDepartment of Internal Medicine, The University of Texas Medical Branch, Galveston, TX; and.
Emily Arentson-LantzDivision of Rehabilitation Sciences.
Melinda Sheffield-MooreDepartment of Internal Medicine, The University of Texas Medical Branch, Galveston, TX; and.
Donald K LaymanDepartment of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Champaign, IL.
Douglas Paddon-JonesDivision of Rehabilitation Sciences Department of Nutrition and Metabolism, and djpaddon@utmb.edu.
The University of Texas Medical Branch at Galveston · USNutrition 21 (United States) · USUniversity of Illinois Urbana-Champaign · US

Funding

UTMB Claude Pepper Older Americans Independence CenterP30AG024832 · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · 2005 to 2025
$2.8M
NCATS NIH HHS UL1TR000071NIA NIH HHS P30 AG024832
6 · The paper itself

Abstract

The RDA for protein describes the quantity that should be consumed daily to meet population needs and to prevent deficiency. Protein consumption in many countries exceeds the RDA; however, intake is often skewed toward the evening meal, whereas breakfast is typically carbohydrate rich and low in protein. We examined the effects of protein distribution on 24-h skeletal muscle protein synthesis in healthy adult men and women (n = 8; age: 36.9 ± 3.1 y; BMI: 25.7 ± 0.8 kg/m2). By using a 7-d crossover feeding design with a 30-d washout period, we measured changes in muscle protein synthesis in response to isoenergetic and isonitrogenous diets with protein at breakfast, lunch, and dinner distributed evenly (EVEN; 31.5 ± 1.3, 29.9 ± 1.6, and 32.7 ± 1.6 g protein, respectively) or skewed (SKEW; 10.7 ± 0.8, 16.0 ± 0.5, and 63.4 ± 3.7 g protein, respectively). Over 24-h periods on days 1 and 7, venous blood samples and vastus lateralis muscle biopsy samples were obtained during primed (2.0 μmol/kg) constant infusion [0.06 μmol/(kg⋅min)] of l-[ring-(13)C6]phenylalanine. The 24-h mixed muscle protein fractional synthesis rate was 25% higher in the EVEN (0.075 ± 0.006%/h) vs. the SKEW (0.056 ± 0.006%/h) protein distribution groups (P = 0.003). This pattern was maintained after 7 d of habituation to each diet (EVEN vs. SKEW: 0.077 ± 0.006 vs. 0.056 ± 0.006%/h; P = 0.001). The consumption of a moderate amount of protein at each meal stimulated 24-h muscle protein synthesis more effectively than skewing protein intake toward the evening meal.

Indexed as

AdultBody Mass IndexCross-Over StudiesDietDietary CarbohydratesDietary ProteinsEnergy IntakeFemaleHealthy VolunteersHumansMaleMealsMiddle AgedMuscle ProteinsPhenylalanineQuadriceps MuscleDietary CarbohydratesDietary ProteinsMuscle ProteinsPhenylalanine

Identifiers

PMID24477298
PMCPMC4018950
OpenAlexW2118131565

What Socratic holds

Textmetadata
Read underepoch 390

Registered trials

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 Socratic graph.