SAC 2 revision - learn.stleonards.vic.edu.au

+ SAC 2 revision + Where do I find what I need to know? Key knowledge the function and food sources of major nutrients important for health and wellbeing the use of food selection models and other tools to promote healthy eating among youth, such as the Australian Guide to Healthy Eating, the Healthy Eating Pyramid and the Health Star Rating System the

consequences of nutritional imbalance in youths diet on short- and long-term health and wellbeing tactics used in the marketing of foods and promoting food trends to youth, and the impact on their health behaviours social, cultural and political factors that act as enablers or barriers to healthy eating among youth, including nutrition information sourced from social media and/or advertising. Key skills explain the functions of major nutrients for general health and wellbeing describe

the possible consequences of nutritional imbalance in youths diet on short- and long-term health and wellbeing evaluate the effectiveness of food selection models and other tools in the promotion of healthy eating among youth analyse the interaction between a range of factors that act as enablers or barriers to healthy eating among youth. + Macro & micro Macronutrients: required by the body in LARGE amounts

Macro = big Micronutrients: required by the body in SMALL amounts Micro = small Regardless of the quantity needed by the body, each nutrient has a different role to play and all re important for health and development. Carbohydrates ~ CHO + The main function of carbohydrates is to provide fuel for energy

Glucose is the preferred fuel for energy in the human body and CHO are rich in glucose, and as a result should provide the majority of an individuals energy needs. Can you explain the difference between low and high GI foods? + Carbohydrates ~ CHO Glucose that is not used is stored in the body as adipose tissue. Most CHO are found in foods of plant origin. Eg. Potatoes, rice, pasta, breakfast cereals

+ Protein Protein is made up of smaller building blocks called amino acids. There are 20 different types of amino acids that humans need to function properly. Classified as either essential or non-essential amino acids depending on composition of amino acids. Protein has two main functions in the body;

To build, maintain and repair body cells Acts as a fuel for producing energy + Some food sources are termed complete proteins. Complete Protein Incomplete Protein Made up of essential amino acids (AAs you can only get from food sources)

Made up of nonessential amino acids (AAs your body can produce by itself) FOOD SOURCES Complete Proteins Meat, chicken, cheese, eggs, milk Foods of animal origin Incomplete Proteins Rice, legumes, nuts, vegetables Foods of plant origin + Fat (often referred to as lipids) Fats are often associated with negative effects on the body, they

are required for adequate health and development throughout the lifespan. Main function Provide energy ~ 1g fat = 37kj of energy Provide insulation Maintenance of cell membranes (structure of the cells to assist with transporting nutrients, gases and waste) Mono and poly unsaturated

+ - Often considered the good fats Are associated with reduced risk of heart disease Monounsaturated fats are liquid at room temp and begin to solidify if placed in the fridge. Polyunsaturated fats are generally liquid at room temp and when placed in the fridge. Two types of polyunsaturated fats , omega 3 and omega 6. Saturated and trans fats - Known as bad fats because they increase cholesterol levels in the blood - Saturated fats are generally found in foods of animal origin

and are often solid at room temperature. - Trans fats are found naturally in certain foods, most trans fats are created when liquid oil is converted into solid fat. For this reason, they are generally found in processed foods eg. Pies Monounsaturat Polyunsaturate Saturated Trans fats ed d Hydrogenated Olives Some margarines Meat vegetable fats Olive oil Vegetable oils Butter Fried take away Avocado

Oily fish (salmon, Cream Pastries tuna, sardines Nuts Coconut cream - + Fibre Fibre is a type of CHO that is required for optimal health and individual human development of youth. Fibre does not get absorbed by the body. Rather, it travels through the digestive system, acting like a cleaner as it moves.

Function Essential for maintaining a healthy digestive system Regulates bowels Increases feelings of fullness after meals Reduces the amount of cholesterol that is absorbed by the body, which reduces the risk of Cardiovascular disease later in life Slows down glucose release rate. +

calcium Formation, hardening and maintenance of bones and teeth. Calcium is stored in the skeleton, but is not static Dairy products, green leafy vegetables, fish Can you describe peak bone mass? + iron Formation of haemoglobin to carry oxygen in the blood. Most iron in the body is in haemoglobin, but is

also stored in bone marrow, spleen and liver Liver, kidney, green leafy vegetables What is the condition called where someone lacks iron? Can you describe the condition? + water macronutrient The body is made up of 60% water within and surrounding cells

6 8 glasses a day is required Inadequate water consumption causes dehydration, resulting in headaches, fatigue Important for chemical reactions to occur in the body. Every body function requires water Water is needed to transport the nutrients to the cells

for excretion lubricates the joints helps regulate body temperature Sources are tap water, meat, fish, milk, tea + TEST OUR KNOWLEDGE + Applying knowledge question For 2

the spaghetti Bolognese sauce: medium onions, peeled and chopped. 1tbsp 1 olive oil. garlic clove, peeled and crushed. 500g 90g 1tsp lean minced beef. mushrooms, sliced. dried oregano or mixed herbs. 400g

can tomatoes or chopped tomatoes. 300ml 250 hot beef stock. g of pasta For 3 ingredients listed above, outline the nutrient and function in the body. + Food Selection Models To assist people in consuming a balanced diet and reducing the risk of short and long term consequences with nutritional imbalance, a number of food selection models have been produced.

Examples include; -Australian Guide to Healthy Eating -Healthy Eating Pyramid -Health star rating system + The Australian Dietary Guidelines https://www.youtube.com/watch?v=t_VDuLdv8Gk A Government initiative, which was revisited in 2013. The guidelines are targeted towards health professionals, including dietitians, nutritionists, general practitioners (GPs), nurses, educators, government policy makers, the food industry and other interested parties.

Made up of 5 guidelines, each guideline has a sub-heading. Guideline 2 & 3 provide advice on which foods should be consumed regularly and which ones should be consumed. + The Australian Dietary Guidelines + The Australian Dietary Guidelines + The Australian Guide to healthy eating

Provides a visual representation of guidelines 2 and 3 from the Australian Dietary Guidelines. The pie chart that shows the proportions of food that should be consumed from each of the five food groups. Grains = 30-35% Vegetables & legumes = 30% Meat and meat alternatives = 15%

Milk and other dairy = 10-12% Fruits = 10 -12% + Why was this food selection model developed? What are the positives of developing this food selection model D E P A R T M E N T O F H E A L T H A N D F A M IL IE S ADAPTED WITH PERMISSION FROM THE AUSTRALIAN GUIDE TO HEALTHY EATING (1988, COMMONWEALTH DEPARTMENT OF HEALTH AND AGED CARE) + The healthy eating pyramid

Developed by Nutrition Australia Based on the guidelines, it represents the 5 food groups + The health star rating system In 2014, the federal government endorsed the Australian Health Star Rating System on food labels as an educational tool to assist people in making healthy food choices.

Its a labelling system that rates the overall nutritional profile of packaged food and assigns a rating from a star to 5 stars. + The health star rating system It based on comparing KJ and risk nutrients such as saturated fats, sodium, sugars and protective nutrients such as fibre, protein and the proportion of fruit and vegetable, nut and legume content. Its a voluntary and companies do not have to pay a fee when applying for a Health Star Rating for their product. What have you heard about the health star rating? https://www.facebook.com/Breakfaston1/videos/10156066012752

719/ + Applying knowledge question Explain the difference between two food selection models, including the positives and negatives. Identify a food selection model and explain how it could assist one in improving their food intake. + Outline one tread from the data for 12-18 year olds. + Applying knowledge question

Explain the short term impact of the trend you have identified. Explain the long term impacts of the trend you have identified. Revision booklet and private study time!!!!! + Immersive marketing Impact of marketing on food trends Social influencer/blogger

Infiltration of social media Marketing strategie s Product placement Collection of personal data Location-based mobile marketing Celebrity endorsements + Immersive

marketing Is a technique that involves seamlessly integrating advertising into a complete experience for the consumer. Eg. Coke allows you to collect points which can contribute to rewards such as a gift voucher or TV Collection of personal data Data collection is important to many multinational companies. Consumers are tagged with unique identifiers when they go online and can be easily tracked and profiled. Eg. Think if you search for something on good then it comes up as a advertisement on your

facebook. + Location-based mobile marketing Celebrity endorsements Through the collection of a mobile phone number, marketers have the ability to follow young people throughout their lives. This technique allows them to send special deals when they are close to particular food outlets. According to research, the use of celebrity endorsements in marketing can not only enhance

brand recognition, but also the desirability of the product, leading to a positive association, particularly among 13-15 year olds. Can you think of any celebrity endorsements? + Product placement Product placement is an advertising technique use by companies to promote their products through appearances in television, film or other media. American idol was a very obvious example of product placement with their big red cups on the judges desks. Coke

signed on as major sponsor in 2002 worth $10million Marketing by social influencers/bloggers Social influences are not necessarily just celebrities, but are also people who are influential in the online world, particularly Instagram & twitter. Who do you follow on social media accounts and why? + Impact of marketing on food trends, in particular clean eating The health and welling trend of clean eating is now widespread in the marketing of food product.

This has also lead to a increase in organic foods Companies are altering their products as they are aware people are willing to pay more for healthy food. + The impact of clean eating on health and wellbeing outcomes Clean eating is usually associated with considerable health benefits eg. Reduce risk of developing type 2 diabetes

A nutritionist in London who treats people with eating disorders is treating double the amount of people these days due to the clean eating trend on social media. + Enablers and barriers to healthy eating, social, cultural and political factors There are many factors that affect food choices. These factors all interact to determine the health behaviors and ultimately the health status of young people. Factors fall under the headings of social, cultural & political. These factors interact to act as either enablers or barriers to healthy eating. + Enablers and barriers to healthy eating ~ social factors Family

Friends Socioeconomic status: income, education & occupation Nutrition information soured from social media + Enablers and barriers to healthy eating ~ cultural factors Religion Ethnicity

Gender + Enablers and barriers to healthy eating ~ political factors Food policies and laws and trade arrangements Food labelling Health promotion + I want more questions!!!

Complete end of chapter questions ~ Apply your knowledge Write questions and answers and exchange with friends

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