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Summary Food components and health

Course
- HNE25306
- Kersten, Sander
- 2016 - 2017
- Wageningen University (Wageningen University, Wageningen)
- Food Technology
602 Flashcards & Notes
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A snapshot of the summary - Food components and health

  • 1 Week 1 Basic principles

  • 1.2 Study disign

  • What are the types of experimental studies and what is it?
    Intervention studies are the type
    Experimental study's are the most powerful. You actually do an interventional experiment. 
  • What are the types of observational studies?
    • prospective cohort studies 
    • case-control studies
    • cross sectional studies 
    • Ecological population based studies 


    Diet of people is not changed. They are studied in there natural context. It can not lead to hard conclusions only associations. 
  • What is a FFQ?
    A FFQ stands for food frequency questionnaire 
    It assess how often you eat certain foods and in what amount. 
    It is a dietary assessment method
  • What is a 24 h dietary recall?
    This is a dietary assessment method.
    A dietitian writes down what a person ate in the last 24h (usually performed several times. 
  • What is a food diary?
    This is a dietary assessment method. 
    It is written down and weighted what people eat. 

    Unfortunalty people tend to change there eating habits and loos motivation and forget to write down things. 
  • What are food composition tables?
    These tables contain information about nutritional content of food, unfortunately they are incomplete and many food products are not listed.
  • What is a cross sectional study?
    This is a observational study.

    The dietary intake is linked to a health or disease related paramater. This is done at a single moment. 
    The downside is that you don't now which one came first. (diet coke or obesity)
    So there is risk of cofounding
  • What is a case control study?
    This is a observational study.

    The dietary intake of sick people is compared with the dietary intake of healthy people. So there is a control group. You look in the past with this study with a food frequency questioner. 
    The advantage is that you can study rear diseases. 
    The disadvantage is that there could be bias and cofounding. 
  • What is a cohort study?
    People are flooded for a long time and when they get sick later in life it is coupled to the things they awnserd in the FFQ. 
    This is the most powerful observation study. 

    disadvantages:
    they relay on FFQ
    Cofounding can happen
  • What is a intervention study?
    You don't just observe you change something. So you intervene 

    2 groups are made one who gets the treatment and one who gets a placebo. You measure the hanges that happen before and after the treatment. 

    advantage: you have avoidance without cofounding and bias. 
    disadvantages: If you wand to see if people get have to follow them for many years. 
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