[Solution]Evaluating the current literature

• Using PICOS approach • Develop a search for evidence for a chosen functional food or ‘superfood’ • We will work on structuring an initial…

• Using PICOS approach • Develop a search for evidence for a chosen functional food or ‘superfood’ • We will work on structuring an initial search using Google, Google Scholar and PubMed. This will allow us to try and interpret the quality of research available to support a health claim • Do you get different amounts and quality of information from different sources? • We will need to think about population group, outcome and controls (these will typically be placebos) Table 1: Examples of PICOS variables which can be used to develop your question Population Intervention Control Outcome Study Design • Children • Adults • Males • Females • Older people • Ethnic populations • People with clinical conditions e.g. Diabetes or CHD • Spices e.g. cinnamon • Foods e.g. milk • Probiotics • Prebiotics • Dietary patterns e.g. Mediterranean diet • Supplements e.g. vitamin C • Extracts e.g. curcumin from turmeric • Usual diet • Placebo • Typical Western Diet This is not as important as other columns for developing your question • Reduced risk of disease e.g. blood pressure • Reduced risk of developing disease e.g. type 2 diabetes • Reduced risk of death from a disease e.g. CVD • Improved wellbeing or mental health • Observational studies e.g. prospective cohorts or casecontrol studies • Randomised controlled trials It is best not to use case series or case studies
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