Validation of a UK on-line 24h dietary recall tool
Research type
Research Study
Full title
Validation of a UK on-line 24h dietary recall tool (MyFood24) for large scale population studies
IRAS ID
135476
Contact name
Gary Frost
Contact email
Sponsor organisation
Imperial College London and Imperial College Healthcare NHS Trust
Research summary
The aim of this study is to evaluate whether a newly developed online 24 hour dietary recall tool (where you recall everything you ate on the last 24 hours yourself using the internet) yields the same or better quality of information as the traditional method of recalling what you ate (where a dietitian helps you to recall) does.
We will ask 200 participants between 18 and 65 years old who can also use and have access to the internet and phone to report their diet using three methods: the newly developed tool (MyFood24), the traditional dietitian-led recall method and a web-based dietary check-list called the Oxford WebQ. They will use each tool three times. They will also complete some questionnaires, collect urine for 24-hours three times, and come to the clinic three times to have blood samples taken and their energy intake measured. We will use the blood and urine samples to measure markers of dietary intake: specifically urinary biomarkers including nitrogen (N); potassium; sucrose and fructose; total energy expenditure and plasma biomarkers including vitamins C and E and β- Carotene.
We will then compare data from the newly developed tool (called MyFood24) with the traditional dietitian-led method using statistical methods. Nutrient intake measures from all three dietary recall tools will also be compared to independent biomarkers of nutrients (obtained from the blood and urine samples). This will allow us to measure how accurate and precise each dietary recall tool is. If the study shows that the new tool (called MyFood24) is as good as the traditional methods to measure diet, we could use MyFood24 in large follow-up studies. Because these follow-up studies would then include better measures of diet than follow-up studies do now, they will help us getting more insight in how diet is related to disease risk. In the long term, this would allow more reliable evidence-based formulations of health policies on diet.
REC name
London - Camberwell St Giles Research Ethics Committee
REC reference
14/LO/0293
Date of REC Opinion
3 Mar 2014
REC opinion
Favourable Opinion