UGRC 145: FOOD AND NUTRITION IN EVERYDAY LIFE Session 11 – FOOD FADDISM Lecturer: PROF. MATILDA STEINER-ASIEDU, SBS, CBAS; University of Ghana, Email: [email protected] College of Education School of Continuing and Distance Education 2014/2015 – 2016/2017 Session Overview Learning Objectives: At the end of this lecture you should be able to: • Promote a sound, factual understanding of foods and their use. • Explain what food faddism is and a fad diet • Describe basic characteristics of fad diets • Differentiate facts about food from fads • Describe at least 2 eating disorders and their implications on health Prof M. Steiner-Asiedu Slide 2 Session Outline The key topics to be covered in the session are as follows: • Topic One: Food Faddism • Topic Two: Eating Disorders • Topic Three: Assignment/Discussion For Next Session Prof M. Steiner-Asiedu Slide 3 Topic One FOOD FADDISM Prof M. Steiner-Asiedu Slide 4 FOOD FAD What is a food fad? • It is an unusual pattern of food behavior enthusiastically adopted by those who practice it –(Sometimes referred to as food cultism) Prof M. Steiner-Asiedu Slide 5 FOOD FAD cont’d • Dietary fads have been known from 400500 BC when athletes and warriors used products such as deer liver and lion’s heart to impart certain benefits – Example they did this with the hope that consumption would produce bravery, speed or strength Prof M. Steiner-Asiedu Slide 6 Who follows food fads? • Followers of food fads are not necessarily superstitious, uninformed or poor • Most are convinced about the special benefits of particular foods because – of religious beliefs –they are genuinely concerned about diet and health but may lack access to reliable and simple information Prof M. Steiner-Asiedu Slide 7 Who follows food fads? People who follow these practices precisely and with passion are said to be FOOD FADDISTS Prof M. Steiner-Asiedu Slide 8 SOME CHARACTERISTICS OF FOOD FADS 1. Special virtues of a particular food are exaggerated and claimed to cure diseases (examples?) 2. Certain foods or food combinations have special health benefits 3. Emphasis on ‘natural’ or organic foods Prof M. Steiner-Asiedu Slide 9 SOME CHARACTERISTICS OF FOOD FADS 4. Elimination of certain foods from the diet due to belief that harmful constituents are present Examples some believe that foods that are : • enriched with vitamins are harmful • preserved with chemical stabilizers are harmful Prof M. Steiner-Asiedu Slide 10 CONCERNS WITH FOOD FADS Exaggeration: to make wild health claims or have an obsession with a small aspect of nutrition. Saying that whole grains are good for health is different from believing that whole grains cure certain diseases. Belief: in a health claim that is not entirely supported by scientific research May be based on limited research or faulty research Prof M. Steiner-Asiedu Slide 11 Distinguishing between ‘fad’ and ‘sound’ claims • In the book ‘Lets Get Well’ it is stated that nutrition can prevent and cure diseases such as water blisters, cramps, appendicitis, asthma, ageing, etc. • Regenerative health programme by the Ghana Health Services (GHS) makes recommendations to suggest that consumption of fruits and vegetables promote health. Which of these is a fad and why? Prof M. Steiner-Asiedu Slide 12 What are Fad Diets? o Fad diets: Subjective term used to label restrictive diets (typically for weight loss) o They typically promise to i. prevent or cure many diseases (cancer) ii. cleanse the body iii. stimulate fast and effective weight loss iv. enhance performance in sports o Usually targeted at people who want to lose weight Prof M. Steiner-Asiedu Slide 13 Characteristics of Fad Diets 1. They are popular (but users soon find that the results expected are not seen and so abandon them) 2. Foods are often labeled as ‘good’ or ‘bad’ which may lead to elimination of important food groups or unusual or ritual type food patterns Prof M. Steiner-Asiedu Slide 14 Examples of Fad diets THE LEMONADE DIET Developed in 1941 by a self-appointed ‘alternative medicine’ expert with no formal medical training It was recently revived and popularized by Peter Glickman in his book ‘Lose Weight, Have More Energy and Be Happier in 10 Days’ ‘Detoxification’ diet that relies on extreme-calorie restriction to lose weight No solid food is taken only water, lemon or lime juice, maple syrup and cayenne pepper Prof M. Steiner-Asiedu Slide 15 Examples of Fad diets cont’d HIGH-PROTEIN DIETS – Proposes consumption of large quantities of animal protein (meat, eggs, fish) to lose weight and build muscle – The flaw in this argument is physical activity and weight training build muscle strength – This diet is harmful to health because consumption of large amounts of proteins over a long period puts pressure on the kidneys and liver – Protein diets may also lack vitamins – Consuming a lot of meat means high fats and cholesterol levels and more calories Prof M. Steiner-Asiedu Slide 16 Examples of Fad diets cont’d OTHER FAD DIETS • • • • • • Cabbage Soup Diet Banana Diet Tuna Fish Diet Genetically Modified Diet Acai Berry Diet Grape Fruit Diet All these diets are made from one ingredient and so are limited in nutrients Prof M. Steiner-Asiedu Slide 17 PROBLEMS ASSOCIATED with fad diets Poor long-term weight control Most fad diets do not teach healthy ways of eating because they promote fast methods of ‘improving’ health Weight lost is gained quickly when old dietary patterns are resumed Cravings for foods not included in the fad diet is developed and when the period is over, overconsumption will lead to greater weight gain Prof M. Steiner-Asiedu Slide 18 PROBLEMS ASSOCIATED with fad diets Non-communicable disease – Fad diets restrict or eliminate fruits, vegetables, legumes and whole grains which may help prevent chronic conditions – This leads to increase in chronic conditions; heart disease, cancer, high blood pressure Prof M. Steiner-Asiedu Slide 19 PROBLEMS ASSOCIATED with fad diets Non-communicable disease High protein diets may also increase calcium excretion leading to osteoporosis (porous, fragile bones) and high risk for heart and blood vessel problems High protein diet, low carbohydrate diets may lead to uric acid and calcium oxalate formation, causing kidney stones and gout (PAINS IN JOINTS) Prof M. Steiner-Asiedu Slide 20 PROBLEMS ASSOCIATED with fad diets Reduced work performance – Increased in signs of tiredness and weakness because of decreased carbohydrate intake (the body’s energy source) – Low carbohydrate diets cause a loss of water and electrolytes (compounds that conduct electricity in solution and useful in the body e.g. Sodium (Na+), Potassium (K+), calcium (Ca2+) Prof M. Steiner-Asiedu Slide 21 PROBLEMS ASSOCIATED with fad diets Reduced work performance – Fluid and electrolytes are lost because the body relies on protein and fat stores when carbohydrates are absent and these are linked with fluid and electrolytes – Fluid and electrolyte loss will lead to serious health problems e.g. low blood pressure and weakness Prof M. Steiner-Asiedu Slide 22 FAD DIETS AND ORAL HEALTH The concerns of oral health workers with fad diets are: – High protein diets increase body water excretion leading to thirst (dehydration). This may be associated with xerostamia (dry mouth resulting from reduced or absent saliva flow) – Reducing food intake to 1-2meals/day also interferes with saliva flow. Chewing gum helps to increase saliva flow Prof M. Steiner-Asiedu Slide 23 FAD DIETS AND ORAL HEALTH – Fad diets that recommend intake of caffeine-rich calorie-free drinks or herbal supplements cause dehydration of oral tissues and dental erosion NOTE!!! Saliva plays an important role in preventing dental decay, cleansing the teeth, and reducing the effects of acids in the mouth which cause tooth decay Prof M. Steiner-Asiedu Slide 24 HOW TO DETERMINE FACT FROM FAD Ask the following questions: Does the diet promise fast weight loss or easy cure of a disease? Does the diet sound too good to be true in what it can do for you? Does the diet help sell a company’s product? Prof M. Steiner-Asiedu Slide 25 HOW TO DETERMINE FACT FROM FAD Does the diet have any valid scientific research to support its claims on what it can do for the body? Does the diet give details of “good” and “bad” foods to eat and avoid respectively? NOTE!!! A yes to any of these questions means the diet is a fad diet. See a nutritionist, dietitian or health professional for clarification Prof M. Steiner-Asiedu Slide 26 Topic Two EATING DISORDERS Prof M. Steiner-Asiedu Slide 27 Overview • Eating disorders affect the youth especially females • Severe dieting may also lead to eating disorders • The two most common eating disorders are: • Anoxeria nervosa • Bulimia nervosa • Both these disorders are associated with tooth decay and may be due to lack of carbohydrates and their effect on water and electrolyte balance Prof M. Steiner-Asiedu Slide 28 ANOREXIA NERVOSA Marked by insufficient food intake to maintain adequate body-weight (essentially voluntary starvation) Eating disorder characterized by obsessive fear of gaining weight due to a distorted self image (see themselves as fat when in fact they are very skinny) More common among young white women There are both biological and environmental causes Environmental causes associated with desire of individuals to conform to media promotion of what an ideal female-people in professions with social pressure to be thin also have high risk Prof M. Steiner-Asiedu Slide 29 Effects on health • weight loss in a very short period • irregular menstrual cycles • Bone mineral loss Prof M. Steiner-Asiedu Slide 30 Anorexic ladies Prof M. Steiner-Asiedu Slide 31 Bulimia nervosa Eating disorder in which the person undergoes periods of over-eating followed by self-induced vomiting • Behavioural signs: • over-eating • eating in secret • bathroom visits after meals to vomit • use of diet pills Prof M. Steiner-Asiedu Slide 32 Bulimia Prof M. Steiner-Asiedu Slide 33 BULIMIA NERVOSA Common medical complications and adverse effects of bulimia include: • Weight gain • Abdominal pain, bloating • Swelling of the hands and feet • Chronic sore throat • Swollen cheeks and salivary glands Prof M. Steiner-Asiedu Slide 34 NOTE!!!!!! • Faddism is dangerous to health • Don’t be a food faddist!! • Always be careful in your health endeavours so that you don’t take any aspect of your health programme to the extreme Prof M. Steiner-Asiedu Slide 35 Topic Two ASSIGNMENT/DISCUSSION FOR NEXT SESSION Prof M. Steiner-Asiedu Slide 36 Take home • List 2 characteristics of fad diet. • What are the implications of eating disorders? Prof M. Steiner-Asiedu Slide 37 Next week • We shall discuss food Habits. • Make sure you read hand-out 9A Prof M. Steiner-Asiedu Slide 38
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