# A dietitian in every gastrointestinal and head and neck tumour board

Source: https://onco.cc/ideas/idea-nl-dietitian-in-every-mdt/  
OnCo record `idea-nl-dietitian-in-every-mdt` (Idea). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

Malnutrition is the commonest untreated complication in cancers of the gut, throat and pancreas. Putting a dietitian in the meeting where treatment is decided means it is seen and treated before chemotherapy starts, not after weight has been lost.

## Summary

Guidelines require malnutrition screening at diagnosis, and trials show dietitian counselling improves treatment completion in head and neck and gastrointestinal cancers, yet audits find fewer than half of patients are screened and dietitian referral typically follows, rather than precedes, treatment. Embedding a dietitian in the multidisciplinary team meeting for upper GI, pancreatic, colorectal and head and neck cancer, with authority to initiate nutrition therapy, prehabilitation and enzyme replacement, is a service-design change with a plausible effect on dose intensity and surgical complications.

## Fields

- Kind: Idea
- Last checked: 2026-09-08
- Hypothesis: Dietitian participation in tumour boards with a nutrition plan for every patient increases the proportion of malnourished patients treated before first therapy from under 30% to over 80% and raises completion of planned chemotherapy or chemoradiation by at least 10 percentage points.
- Rationale: The intervention is cheap relative to the cost of treatment interruptions and readmissions, the workforce (one dietitian per team) is realistic, and the geriatric assessment literature shows that structured assessment attached to the treatment decision changes outcomes.
- Proposed test: Stepped-wedge cluster trial across 20 hospitals with screening rate, time to nutrition intervention, relative dose intensity, unplanned admissions and 1-year survival as endpoints, plus cost analysis; then guideline and commissioning change.
- Maturity: early-clinical
- Actor: clinic

## Sources

- Bottleneck evidence (Cachexia, toxicity and the limits of the patient): Fearon et al., Definition and classification of cancer cachexia (Lancet Oncology 2011): https://doi.org/10.1016/S1470-2045(10)70218-7

## Connected records

- ideas: [Geriatric assessment by default for every older patient, and trials that admit them](https://onco.cc/ideas/idea-moon-geriatric-assessment-default/), [Treat wasting like sepsis: a trigger, a bundle, an audit](https://onco.cc/ideas/idea-bio2-cachexia-pathway-code/)
- cancers: [Colorectal cancer](https://onco.cc/cancers/colorectal/), [Gastric & gastro-oesophageal junction cancer](https://onco.cc/cancers/gastric/), [Head and neck squamous cell carcinoma](https://onco.cc/cancers/head-and-neck/), [Oesophageal cancer](https://onco.cc/cancers/esophageal/), [Pancreatic ductal adenocarcinoma](https://onco.cc/cancers/pancreatic/)
- fronts: [Diet, Exercise & Lifestyle](https://onco.cc/fronts/nutrition-lifestyle/), [Supportive Care & Survivorship](https://onco.cc/fronts/supportive-care/)
- technologies: [Enhanced recovery (ERAS) and perioperative nutrition](https://onco.cc/technologies/eras-perioperative-nutrition/), [Geriatric assessment](https://onco.cc/technologies/geriatric-assessment/), [Nutrition support and cachexia management](https://onco.cc/technologies/oncology-nutrition/), [Oncology nutrition assessment and medical nutrition therapy](https://onco.cc/technologies/nutrition-screening-mnt/)
- terms: [Cancer cachexia](https://onco.cc/terms/cachexia/), [Malnutrition screening tools (MUST, NRS-2002, MST, PG-SGA)](https://onco.cc/terms/malnutrition-screening/), [Nutrition impact symptoms](https://onco.cc/terms/nutrition-impact-symptoms/)
- bottlenecks: [Cachexia, toxicity and the limits of the patient](https://onco.cc/bottlenecks/b-cachexia-supportive/), [Fragmented care and guideline gaps](https://onco.cc/bottlenecks/b-care-fragmentation/), [Not enough oncologists, nurses, pathologists, physicists](https://onco.cc/bottlenecks/b-workforce/)
- key papers: [Definition and classification of cancer cachexia: an international consensus](https://onco.cc/key-papers/paper-fearon-lancet-oncol/)

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