Functional Foods

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  • Created by: joshd
  • Created on: 29-03-14 09:54
What is a functional food? Give examples.
One that has some kind of health benefit beyond basic nutrition. For example, it might prevent some sort of disease or it might 'promote your well-being'.
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What are probiotics? Give examples.
Probiotics are live bacteria, such as Bifidobacteria and Lactobacillus (a lactic acid bacterium). These 'good bacteria' are similar to those that are found naturally in your gut.
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What are probiotics added to? (examples) Describe about bacteria.
To foods like yogurt, soya milk and dietary supplements (e.g, capsules). The bacteria may have already been there or they're added by the manafacturer.
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What is thought that probiotics give?
That they help to keep your digestive system healthy and your immune system strong.
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What are prebiotics? Give an example.
Prebiotics are carbohydrates that we can't digest (e.g, oligosaccharides)
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Where do prebiotics naturally occur?
In foods like leeks, onions, and oats, but you can't get enough of them in a normal diet to cause a significant effect. So some people take supplements containing prebiotics.
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What are prebiotics a food supply for?
For 'good' bacteria that are already in your digestive system.
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What's thought about taking prebiotics?
It's thought that taking prebiotics can help promote your growth of the 'good' bacteria in the gut, which could in turn improve the health of your digestive system and may also help strengthen your immune system.
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What are plant stanol esters?
Plant stanol esters are chemicals that can lower blood cholesterol and reduce the risk of heart disease.
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Where do stanols naturally occur?
In plants, but in very small quantities. Stanals are produced commercially by using bacteria to convert sterols (types of fat found in plants like the soya bean) into stanols.
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What do some food manafacturers do with plant stanol esters?
Add them to spreads and some dairy products. People who are worried about their blood cholesterol levels may choose these spreads over normal spreads.
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What are some of the questions to test the reliability of functional foods? (1)
Is the report a scientific study, published in a reputable journal? Was it written by a qualified person (not connected with the people selling it)?
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What are some of the questions to test the reliability of functional foods? (2)
Was the sample of people asked/tested large enough to give reliable results? Have there been other studies which found similar results?
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Give an example of a study published to prove functional foods reliability.
The New England Journal of Medicine provided evidence that plant stanols lower blood cholesterol. The study was in reputable journal and there have been other studies that have found similar results. These increase the reliability of the study.
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Other cards in this set

Card 2

Front

What are probiotics? Give examples.

Back

Probiotics are live bacteria, such as Bifidobacteria and Lactobacillus (a lactic acid bacterium). These 'good bacteria' are similar to those that are found naturally in your gut.

Card 3

Front

What are probiotics added to? (examples) Describe about bacteria.

Back

Preview of the front of card 3

Card 4

Front

What is thought that probiotics give?

Back

Preview of the front of card 4

Card 5

Front

What are prebiotics? Give an example.

Back

Preview of the front of card 5
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