Many patients would benefit from dietary/nutritional support to better manage their conditions but evaluating current intake in relation to personal targets is labour-intensive and often does not feature as part of clinical consultations.

Primary objective: test usability and acceptability of 'myfood24 Health' for monitoring dietary intake in a group of patients.

Recruit 60 gastroenterology surgery patient (Leeds) and 60 Tier 3 Weight Management patients (30 Leeds/ 30 York).

Randomise to 3 groups

1. usual care
2. myfood24Health
3. myfood24Health plus personalised feedback 'diet optimisation engine' which suggests changes to amounts or types of foods

During a 2-month follow-up, patients in group 2 or 3 will be asked to record daily diet in myfood24, including weekend and weekdays and use it a minimum of 4 times.

HCPs will be able to review diet/nutrients for group 2 and 3 patients and can support dietary change or nutritional goals, as part of patients' ongoing clinical management, during existing scheduled clinic visits (N.B. not all participants will have a scheduled clinic appointment during the study).

2 months after recruitment, all participants will receive a link to an online feedback questionnaire.

At end of study, HPCs will be invited to provide feedback during a 30 minute interview.

See published results at https://www.mdpi.com/2072-6643/14/9/1768

Inclusion Criteria:

• Able to use a smartphone or tablet
• Have regular access to the internet
• Aged 18 years or over
• Not receiving palliative treatment for their condition
• No pre-existing condition, eg. diabetes which requires a specific diet or eating disorder
• No food allergies
• Be receiving ongoing gastrointestinal surgery or weight management treatment
• Be able to read and understand English

Exclusion Criteria:

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