Food labelling, additives and dietary assessment Flashcards

(48 cards)

1
Q

How can a food label be read for better health?

A

Types of fats /oils used?
How much sugar / salt per serving?
Are there additives / preservatives / artificial colours?
Is it nutrient-dense or calorie-dense?
GMO?

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2
Q

What information must appear on the label?

A

Name incl. name and address of manufacturer.
Ingedients list
Processing method of any ingredients
Weight / volume
Preparation and storage instructions
Macro-nutrient information

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3
Q

How are the ingredients listed?

A

All ingredients, including water, must be included.

Listed in order of weight, with the highest weight ingredient first.

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4
Q

When must a percentage of an ingredient be shown?

A
  • When it’s highlighted by labeling or a picture.
  • When it’s mentioned in the products name.
  • If consumers would generally connect an ingredient with the product.
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5
Q

What nutrient information is mandatory on the label?

A

Energy value
Fat
- saturated fats
Carbohydrates
- Sugars
Protein
Salt

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6
Q

When might a vitamin or mineral be listed in the nutrient information?

A

Not mandatory but can be listed if 15% or more of the nutrient reference value (NRV) is contained per 100g/ml or per serving.

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7
Q

What do the Reference Intakes (RIs) show?

A

Maximum amount of calories, macronutrients, and salt that should be consumed in a day.

They are not a target.

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8
Q

What are RIs based on?

A

An average-sized woman doing an average amount of physical exercise.

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9
Q

What are the RIs for:
- Energy
- Fat
- Carbohydrates
- Protein
- Salt

A

Energy 2000 kcal
Fats less than 70g, of which saturates 20g
Carbs 260g, of which sugars 90g
Protein 50g
Salt less than 6g

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10
Q

How might the traffic light system on labels be misleading?

A

It does not indicate the nutritional value of the food.

Processed food with low nutritional value could appear to look good, whereas wholefoods (such as nuts) which are nutrient-dense appear to look bad.

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11
Q

How many allergens are there that must be highlighted if included in the ingredients or processing in pre-packed food?

Name 5

A

14 allergens:

Gluten
Eggs
Fish
Crustacians
Peanuts
Soya
Celery
Milk
Tree nuts
Mustard
Sesame
Sulphur dioxide
Lupin
Molluscs

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12
Q

Besides allergens, what additional warnings are required on the label?

A
  • Alcohol content if above 1.2%
  • GM ingredients above 0.9%
  • If the produce has been irradiated
  • If packaged using gas
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13
Q

Does ‘free-from’ mean the food is healthy?

A

No - just because it’s free from allergens does not mean it’s healthy. Can still be highly processed etc.

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14
Q

When is GMO required and not required to appear on labeling?

A

Presence of GMOs or ingredients produced from GMOs must be on the label.

Food produced with the help of GMO technology doesnt have to be stated on the label.

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15
Q

What are GMOs?

A

GMOs are living organisms whose genetic material has been manipulated through genetic engineering.

Europe and UK are officially GMO-free. The USA isn’t.

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16
Q

When can food be labelled as organic?

A

When at least 95% of the ingredients are organic.

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17
Q

Give 4 examples of misleading nutrition claims

A

Low calorie
No added sugar
No sugar (with artificial sweeteners)
Natural doesnt mean health
Low fat - high in others

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18
Q

List the 6 main categories of food additives, along with their main E numbers

A
  1. Colours E100s
  2. Preservatives E200s
  3. Antioxidants E300s
  4. Emulsifiers, stabilisers, thickeners E400s
  5. Flavour enhancers E600s
  6. Sweeteners E900s
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19
Q

What are the 3 forms of additives?

A

Artificial - made synthetically

Nature-identical - manufactured to copy substances found naturally in food

Natural - found naturally in food

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20
Q

What symptoms are associated with artificial colours? (2)

A

Hyperactivity
Poor concentration

21
Q

What’s the purpose of preservatives?

A

Slow down the decomposition of food caused by air, bacteria, moulds and yeasts to prolong shelf life.

22
Q

Name 3 common preservatives

A

Sodium benzoate E211
Sulphur dioxide E220
Sodium nitrite E251

23
Q

Whats the purpose of antioxidant additives?

A

Not for our health - used to decrease the chances of oils and fats turning rancid to extend shelf life.

24
Q

List 3 common synthetic antioxidants

A

E310
E319
E320
E321

25
What's the purpose of emulsifiers, and when are they commonly used?
Mix ingredients that would normally separate. Used in dairy-free milks and yoghurts
26
What pathologies are several emulsifiers associated with?
Inflammatory bowel disease Colon cancer
27
What's the purpose of stabalisers? And when are they commonly used?
Prevent ingredients from separating again. Used in ice cream, margarine, dairy and dairy-free products, salad dressings, mayo
28
What issues are thickening and gelling agents (E400) linked to?
GI issues such as bloating, cramping, nausea
29
List 4 health risks associated with artificial sweeteners.
Raise insulin levels and affect insulin sensitivity. Over-stimulate sugar receptors making health options less appealing Addictive and increase craving for sweet foods Cause DNA damage
30
What has over 20 artificial colours and preservatives been link to?
ADHD
31
When would additives not appear on the label? Give an example
When they're added to food prior to manufacturing. Eg. colour added to farmed salmon to increase redness of flesh.
32
Why is there doubt over the reliability of safety assessments and reviews of additives?
The laws differ between different countries with certain additives banned in some countries but used in others
33
Are natural additives safe?
Not necessarily. Eg E407 carrageenan from seaweed causes GI inflammation, bloating and bowel disease E330 citric acid from citric fruits is manufactured using cheap GM
34
List 2 additives that can affect the nutritional value of food.
E926 chlorine dioxide decreases vitamin E content E220 sulphur dioxide impedes oxygen-carrying capacity of haemoglobin and destroys vitamin B1 in food.
35
Give 2 examples of preservatives with adverse effects.
E240-52 nitrates and nitrites - carcinogenic E220 sulphur dioxide impedes oxygen-carrying capacity of haemoglobin and destroys vitamin B1 in food.
35
Give 2 examples of antioxidant additives with adverse effects
E320 BHA and E321 BHT (artificial) Hives, dermatitis, headaches, carcinogenic They're banned from being used in food for babies and young children.
36
Give an example of a thickener/emulsifier with adverse effects
E407 carrageenan (natural) Disturbs the gut microbiome. Causes inflammation.
37
Give an example of a flavour enhancer with adverse effects.
E621 MSG (natural) Headaches, muscle tightness, flushing, fatigue
38
Give 2 examples of artificial sweeteners with adverse effects
E950 Acesulfame K Headaches, nausea, depression, carcinogenic E951 Aspartame Irritability, depression, impaired spatial orientation, carcinogenic, compromised blood brain barrier.
39
How might you advise someone to reduce their intake of food additives?
Prioritise consuming fresh, homemade food. Avoid additive-laden, packaged food Consider the nutritional value in food.
40
How can you reduce the amount of chemicals on fruit and vegetables?
Wash in 2% salt solution or in a white distilled vinegar / water solution (10% / 90%) Let them sit for 15-20 mins.
41
Name 1 example of a chemical that can leach out of plastic
Bisphenol A (BPA)
42
What health issue has been linked to plastics?
Hormone-related diseases as BPA and other compounds are called xenoestrogens meaning that they mimic oestrogen in the body. Xeno oestrogens can bind to oestrogen receptors, disrupting normal function.
43
Name 2 plastics used in packaging that have been linked to human health issues.
PET - soft drinks, water bottles PVC and DEHA - clingfilm, cooking oil bottles PS - food trays, egg cartons PC - plastic baby bottles, sports water bottles.
44
What alternatives can you suggest to a client in place of cling film?
Greaseproof paper or wax paper Beeswax wraps Glass or stainless steel containers
45
What is irradiation? And should it appear on the label?
Used to prolong shelf life using high energy electron beams, X-rays, or gamma rays. It must be stated on the lablel as 'irradiated' or 'treated with ionising radiation'.
46
What 6 categories of food can be irradiated in the EU?
Fruit & veg Cereals Bulbs and tubers Dried aromatic herbs, spices, and seasonings Fish & shellfish Poultry
47
Is irradiation safe?
No During the process, compounds called 'radiolytic products' are formed, some of which are mutagens and carcinogens. Toxic chemicals, including benzene (carcinogen), formic acid, and formaldehyde, can also be produced. Chromosomal abnormalities can cancer have been demonstrated in animals exposed to irradiated food.