SynthesisObesity surgery2017
Effect of Protein Intake on the Protein Status and Lean Mass of Post-Bariatric Surgery Patients: a Systematic Review.
Synthesis in Obesity surgery, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 7 of them syntheses that pooled 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.
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
35 citing papers in PubMed, 7 syntheses or guidelines pooled it, 67 citations in OpenAlex.
- The Effects of Long-Term Exercise Intervention on Cardiovascular Health Outcomes in Patients after Metabolic and Bariatric Surgery: a Systematic Review and Meta-Analysis.Obesity surgery · 2026Pooled it
- The role of nutritional factors in fat-free mass preservation and body composition changes after bariatric surgery: a systematic review of the available evidence.Eating and weight disorders : EWD · 2025Pooled it
- Mixed comparison of different exercise interventions on physical functioning in adult patients with morbid obesity following bariatric surgery: a systematic review and network meta-analysis.Frontiers in endocrinology · 2024Pooled it
- Associations between diet composition, dietary pattern, and weight outcomes after bariatric surgery: a systematic review.International journal of obesity (2005) · 2023Pooled it
- The effect of additional protein on lean body mass preservation in post-bariatric surgery patients: a systematic review.Nutrition journal · 2021Pooled it
- Pooled it
- Relative Energy Expenditure Decreases during the First Year after Bariatric Surgery: A Systematic Review and Meta-Analysis.Obesity surgery · 2019Pooled it
- Evaluating Protein Liquid Supplementation for Enhanced Protein Intake and Adherence at Short-Term After Metabolic and Bariatric Surgery: A Pilot Randomized Controlled Trial.Obesity surgery · 2025Trial
- Efficacy of telehealth core exercises during COVID-19 after bariatric surgery: a randomized controlled trial.European journal of physical and rehabilitation medicine · 2022Trial
- Trial
- A Comparison of the Effects of Roux-en-Y Gastric Bypass and Sleeve Gastrectomy on Body Mass Composition as Measured by Air Displacement Plethysmography.Obesity surgery · 2020Trial
- An Application May Help Improve Protein Consumption after Bariatric Surgery.Obesity surgery · 2019Trial
- Association of Weight Loss Composition Following Metabolic-Bariatric Surgery With Incident Major Adverse Cardiovascular Events and All-Cause Mortality.Clinical obesity · 2026Article
- Nutrition and Physical Activity in Optimizing Weight Loss and Lean Mass Preservation in the Incretin-Based Medications Era: A Narrative Review.Nutrients · 2025Review
- Critical Appraisal of Predictors of Low Muscle Strength and Reduction in Fat-Free Mass in Multi-ethnic Asian Populations Undergoing Bariatric-Metabolic Surgery.Obesity surgery · 2025Article
- Changes in dietary nutrient intakes at 6 and 12 months following bariatric surgery in a Chinese observational cohort.Scientific reports · 2025Observational
- Is There a Need to Reassess Protein Intake Recommendations Following Metabolic Bariatric Surgery?Current obesity reports · 2025Review
- Evaluation of Protein Cards: A nutrition education tool for metabolic bariatric surgery.PloS one · 2025Article
- Protein Supplements with Short Peptides Are Better than Complex Protein-Based Supplements on Improving Early Fat-Free Mass Loss Following Bariatric Surgery: A Retrospective Cohort Study.Obesity surgery · 2024Article
- Protein supplementation preserves muscle mass in persons against sleeve gastrectomy.Frontiers in nutrition · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPost-bariatric surgery may compromise nutritional status due to energy and protein intake restriction.
methodsSystematic review was performed to synthesize evidence on the amount of protein intake and its association with lean mass and serum proteins during at least 6 months following Roux-en-Y gastric bypass or sleeve gastrectomy.
resultsTwelve studies (n = 739) were identified in the search. Protein intake below 60 g/day and significant lean mass loss were observed in majority of these studies. Of the four studies that measured association between protein intake and lean mass retention, only two supported this hypothesis.
conclusionThere is insufficient evidence of the effect of dietary protein on serum protein levels. Further studies are needed to better estimate the protein intake that supports a healthy nutritional status in this population.
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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 OpenQuestion graph.