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Dietary Requirements for Different Client Groups Lisa M. Hanna-Trainor.

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Presentation on theme: "Dietary Requirements for Different Client Groups Lisa M. Hanna-Trainor."— Presentation transcript:

1 Dietary Requirements for Different Client Groups Lisa M. Hanna-Trainor

2 Learning Outcomes Be aware that there are a range of different client groups Identify different characteristics of the different client groups Knowledge of different components in different foods Identify other factors that will affect food choice

3 Different Client Groups Pregnant women Infants, babies and toddlers Primary school children Adolescents Adults Older people Vegetarians Coeliac Disease Diabetes Food Intolerance

4 Nutrition Nutrition through Life Cycle

5 Pregnant Women Provide sufficient energy for pregnancy weight gain (developing baby) Provide all essential nutrients for growth Lifestyle - Avoid alcohol / smoking due to risk miscarriage / stillbirth Regular non-strenuous exercise 400ug/day folic acid until week 12 Adequate fibre to prevent constipation 25-35g/day Increase fluid intake Increased Energy – extra 200 calories/day during last 3mnths Increased Iron intake – form red blood cells, babies iron store laid down during pregnancy, last for 6mnths after birth

6 Pregnant Women Essential fatty acid intake – important foetal brain development Vitamin A – high intake not recommended, avoid liver and other sources Vitamin C – increased need, aids in absorption of iron Vitamin D – increased need to aid calcium absorption, 10ug/day Adequate Calcium – healthy diet should provide sufficient calcium for mother and baby Should avoid soft cheeses, unpasteurised milk, raw eggs, undercooked chicken, liver products Good personal / food hygiene important Special nutritional considerations: teenagers, those with learning disabilities, ethnic groups

7 Infants, Babies and Toddlers Breast-feeding is optimum feeding for first 6mnths Advantages for baby – lower risk of infection, protection against allergens, provides correct mix and quantity of nutrients, baby only takes what it needs Advantages for mother – No preparation needed, help with weight loss after birth, associated with lower risk of certain cancers; eg. breast, ovarian Vitamin A, C & D and calcium all important for infants

8 Infants, Babies and Toddlers Some mums choose not to or are unable to breast feed Bottle fed / infant formula – based on cows milk modified to mimic the nutrient profile of breast milk Various products available on market, SMA Gold and Aptamil Cows milk contains more protein, less fat, lactose and Vit A & C Weaning – transition on to a mixed diet, advised at 6mnths Suggested introductory foods; pureed cooked vegetables and pureed fruit

9 Pre-School / School Age Children Children between 1-4yrs have high energy and nutrient needs. Variable appetite relating to fluctuations in growth rate Important nutrients include; Calcium and Vit. D, Fibre / NSP, Iron and Fluoride Should avoid high fat, high salt and high sugar food From age 5, children should have a healthy balanced diet as per Eatwell model Childrens families exert most influence over their eating and physical activity habits

10 Eatwell Model

11 Primary School Children Continually growing and developing physically, cognitively and emotionally Children continue to develop eating and exercise behaviours that affect their current and future states of health Although family exert most influence, other external influences including; Teachers / Coaches, Friends, Media, Ethnic group / religion, Special requirements. Need for Independence Iron deficiency problematic – include iron rich foods eg. Meats, fortified breakfast cereals (Vit. C to aid absorption) Constipation problematic – fibre and fluids encouraged, eg. Fruit and vegetables, wholegrain breads and cereals Calcium requirements should be met due to bone formation; prevention of osteoporosis

12 Adolescents Biological, psychosocial and cognitive changes affect nutritional status Rapid growth increases nutrient needs Need for independence, means take control over their food choices Conform to peer pressure Nutrient deficiencies common / health-compromising eating behaviours Need for calcium and Vitamin D to build bone density; Iron to prevent iron-deficiency anaemia; Zinc for essential mineral growth Watch intake of high salt, high sugar and fatty foods

13 Adults Early = yrs Midlife = yrs Old Age = 60+ yrs Important to develop beneficial nutritional and lifestyle choices to support physical and mental health and well-being in old age Reduce fat intake to 30% or less; limit saturated fats to less than 10%; limit cholesterol to 300mg/day Five or more portion s of fruit and vegetables daily Maintain moderate protein intake Limit salt to less 6g/day (FSA, 2010)

14 Adults Limit alcohol intake; 2-3 units/day for women; 3-4units/day for men, with 2-3 alcohol free days in the week Vitamin and mineral supplements in excess of RDA not advised Balance food intake and physical activity to maintain normal weight Main health issues; obesity, inactivity, high cholesterol, high blood pressure, prevention of diseases eg. CVD, cancer Younger adults more unhealthy than older adults Low income = Poorer diet

15 Older People Some nutrients are of particular importance in older people; fibre (constipation), calcium and Vitamin D (fractures), Vitamin B 12 and Iron (anaemia) Some specific nutrients may be needed in increased amounts for individuals; eg. Protein and zinc (wound healing) Ill health and ageing process impacts on nutrition Main age-related body changes; decrease in muscle mass, slower uptake of vitamin A, decline in immune function, decreased absorption of certain vitamins and minerals

16 Vegetarians and Vegans Number of different types of vegetarian In general they have a well balanced diet Suffer from less chronic diseases Vegetarians are more likely to be health conscious and alter other aspects of their diet and lifestyle Should be eating; 3 or 4 servings of cereal grains, 4 or 5 servings of fruit and vegetables, 2 or 3 servings pulses, nuts and seeds, 2 servings of dairy, eggs or soya products, small amount of vegetable oil

17 Vegetarians and Vegans

18 Coeliac Coeliac disease is a reaction to protein in food known as gluten. Lifelong inflammatory condition of gastro-intestine tract that affects small intestine; reduces an individuals ability to absorb enough nutrients for their needs 250,000 diagnosed with coeliac disease in UK, however 500,000 undiagnosed Nutritional needs include; gluten-free diet, correct any nutritional deficiencies caused by poor absorption Gluten free foods ranges available from supermarkets

19 Diabetes Diabetes mellitus is a condition in which the amount of glucose (sugar) in the blood is too high because the body cannot use it properly Type 1 – Insulin dependent; develops if the body is unable to produce any insulin (treated by insulin injections and diet) Type 2 – Non-insulin dependent; develops when body can still produce some insulin, but not enough, or when insulin that is produced doesnt work effectively (treated by diet alone, or diet and tablets)

20 Diabetes Diet for people with diabetes is a balanced healthy die, the same kind that is recommended for rest of population - low in fat, sugar and salt - plenty of fruit and vegetables - meals based on starchy foods, such as bread, potatoes, cereals, pasta and rice 1.4 million people in UK have diabetes Over ¾ people with diabetes have type 2

21 Food Intolerance (FI) Food allergy and food intolerance are both types of food sensitivity Food allergy is when body identifies food as foreign substance and triggers abnormal reaction in immune system Food intolerance doesnt involve the immune system and is generally not life-threatening. But if someone eats a food that they are intolerant to, this could make them feel ill or affect their long-term health Signs (FI) include; headache, swelling, vomiting, diarrhoea, skin disorders FI Caused by; milk, eggs, nuts, fish/shellfish, wheat/flour, chocolate, artificial colours, pork/bacon, chicken, cheese Essential to examine the label on any pre-packed food

22 Food Intolerance – Labelling Rules Peanuts Nuts Eg. almonds, hazelnuts, walnuts, Brazil nuts, cashews, pecans, pistachios and macadamia nuts Eggs Milk Crustaceans (including prawns, crabs and lobsters) Fish Sesame seeds Cereals containing gluten (including wheat, rye, barley and oats) Soya Celery Mustard

23 Determinants of Food Choice and Eating Patterns throughout Life

24 Important Note You should target your product to a particular client group bearing in mind their specific dietary requirements

25 Components of Food Carbohydrates Proteins Fats Minerals Vitamins Water Fibre (Roughage)

26 Carbohydrates C = carboH 2 0 = hydrate Basic formula (CH 2 0)n All Carbohydrates are converted to glucose and absorbed into the blood Glucose – vital fuel: n = 6 C 6 H 12 O 6 CHO have a reciprocal relationship with fat CHO Fat

27 Carbohydrates Chemically carbohydrates are defined by their number of saccharide units in their structure Monosaccharides Disaccharides Oligosaccharides Polysaccharides

28 Dietary Carbohydrates Originate from plants – CO2 + H2O – Photosynthesis Not all carbohydrates are digestible 1 gram of carbohydrate = 4kcal In our diet, starches and sugars are main sources of dietary carbohydrate Function of Carbohydrate – supply energy, protein sparing, prevents ketosis – breakdown fatty acids

29 Dietary Carbohydrates

30

31 Dietary Sugars Intrinsic sugars: sugars which are incorporated within intact plant cell walls; eg. fruit and vegetables Extrinsic sugars: refined sugars; eg. Fruit juices, honey and milk Non-milk extrinsic sugars: sugars are present in a free and readily absorbable state eg. sucrose

32 Requirement and Intake Total carbohydrate should provide up to 50% energy Non-milk extrinsic sugars should not exceed 11% energy intake Starches, intrinsic and milk sugars should contribute to 39% energy intake Certain diets promote restricted intake of carbohydrates Atkins Diet – low carbohydrate diet GI Diet – Encourages foods with low glycaemic index (GI) <60

33 Sources of Dietary Carbohydrate

34 Protein Contains carbon, hydrogen, oxygen and nitrogen Protein regulates and maintains body functions; structural (skeleton, connective tissues), protective (tears, mucus), transport (plasma proteins and hormones) and enzymatic (protein synthesis) Protein are made up of 20 different amino acids bonded together in different sequences to form may SPECIFIC proteins Twenty amino acids are important in nutrition

35 Amino Acid All amino acids have an acid group and an amino group attached to a carbon atom The rest of the amino acid is represented by R and is different for every amino acid The carbon to which the carboxyl is attached is the alpha-carbon Amino acids have 4 different groups around the alpha carbon resulting in optically active L or D isomers or enantiomers

36 Structure of Amino Acid

37 Classification of Amino Acid Essential (indispensable) Amino Acid - One that the body is unable to make or can only make in inadequate quantities - Need to be consumed from the diet essential amino acids Nonessential (dispensable) Amino Acid - One that the body can make in large enough quantities (Made from essential amino acids) - Not necessary to consume these in the diet nonessential amino acids

38 Amino Acids Essential Amino Acids -Phenylalanine -Valine -Threonine -Tryptophan -Isoleucine -Methionine -Histidine -Arginine -Leucine -Lysine Nonessential Amino Acids -Alanine -Asparagine -Aspartic acid -Cysteine -Glutaminc acid -Gluatmine -Glycine -Proline -Serine -Tyrosine Conditionally essential Amino Acids -Cysteine -Glutamine -Tyrosine

39 Biological Functions of Protein Used in body organs and soft tissues Enormous functional diversity Cell membrane structure and function Enzymes Hormones and other chemical messengers Immune factors (antibodies) Fluid Balance Transport Source of energy Structural and Mechanical – Collagen in bone and skin; Keratin in hair and nails; Motor proteins, which make muscles work

40 Enzymes / Hormones Enzymes Proteins that catalyze (speed up) chemical reactions without being used up or destroyed in the process Anabolic (putting things together) and catabolic (breaking things down) functions Eg. Digestion – salivary amylase Hormones Chemical messages that are made in one part of the body but act on cells in other parts of the body Eg. Insulin, some reproductive hormones

41 Immune Function / Fluid Balance Immune Function Antibodies are proteins that attack and inactivate bacteria and viruses that cause infection Fluid Balance Proteins in the blood help to maintain appropriate fluid levels in the vascular system. Fluid is forced into tissue spaces by blood pressure generated by pumping action of heart.

42 Transport Proteins Transport substances in the blood Lipoproteins (transport lipids) Hemoglobin ( transports oxygen and carbon dioxide) Transports materials across cell membranes

43 Source of Energy Proteins are the last to be used for energy Occurs in starvation and low carbohydrate diets When the body has excess protein stores, some amino acids are converted and stored as fat in body Sources of protein

44 Fats Functions include; Provide energy Efficient storage of energy (adipose tissue) Insulation Essential nutrients required for; metabolic and physiological processes, structural and functional integrity of cell membranes Control body temperature Physical protection to internal organs Transport fat soluble vitamins Flavour and mouth feel

45 Fat and Fatty Acids Simplest form – composed of a chain of carbons with hydrogen atoms attached, methyl group and a carboxylic group Methyl group Acid group Double Bond

46 Dietary Fats High energy component – 9 kcal per gram Most important contain carbons Whether a fat is saturated, monosaturated or polysaturated depends on the location of the double bond

47 Saturated Fatty Acids Only single bonds High melting temperature Solid at room temperature Chemically stable Examples include animal fats and their products Linked with risk of cardiovascular disease

48 Monounsaturated Fatty Acids Contain one double bond Usually liquid at room temperature Examples include olive oil, rapeseed Oil, nuts and seeds Most beneficial type of fatty acid Lower LDL cholesterol

49 Polyunsaturated Fatty Acids Contain 2 or more double bonds Liquid at room temperature Susceptible to oxidation Omega 3 and 6 Polyunsaturated fatty acids are needed in brain development

50 Trans Fatty Acids Processed margarines contain significant amounts of trans fat Same adverse affects as saturated fatty acids

51 Cholesterol Wax like substance Produced by the liver Belongs to steroid family Important to limit dietary cholesterol Cholesterol is essential to life required for synthesis of bile acids, steroid hormones and vitamin D

52 Dietary Fat Requirements Less than 35% of energy intake should come from fats <11% from Saturated fatty acids 13% Monounsaturated fatty acids 6.5% N-6 Polyunsaturated fatty acids (PUFA) 0.2g/day minimum N-3 Polyunsaturated fatty acids (PUFA) <2% Trans fats May need higher intakes of n-3

53 Low or Reduced Fat Foods Reduced fat = at least 25% less fat than the standard product Low fat food = <3g fat/100g or 100ml Fat free = <0.15g fat/100g or 100ml

54 Vitamins Essential organic substances, they yield no energy, but facilitate energy-yielding chemical reactions Essential nutrients in maintenance of normal health Obtained from food because the body cant make them You need only small amounts (micronutrients) because the body uses them without breaking them down, unlike what happens to carbohydrates and other macronutrients

55 Vitamins 13 compounds have been classified as vitamins Vitamins A, D, E, and K, the four fat-soluble vitamins, tend to accumulate in the body Vitamin C and the eight B vitamins (biotin, folate, niacin, pantothenic acid, riboflavin, thiamin, vitamin B6, and vitamin B12) dissolve in water, so excess amounts are excreted (water-soluble vitamins)

56 Vitamins Vitamin A = Retinol, retinaldehyde, retonoic acid (performed) and carotenoids (provitamin A) Vitamin B1 = Thiamin Vitamin B2 = Riboflavin Vitamin B6 = Pyridoxine, pyridoxal, pyridoxamine Vitamin B12 = Cobalamin Vitamin C = Ascorbic Acid Vitamin D = Calciferol Vitamin E = Tocopherol, tocotrienol Vitamin K = Phylloquinone

57 Vitamin A Function – Promote Vision and Growth, prevent drying of skin and eyes Food Sources – Performed (Liver, fish oils, fortified milk and eggs) Proformed (Dark leafy green, yellow orange vegetables & fruits Deficiency – Cause night blindness, skin changes and nutritional anaemia Those at risk – Urban poor, breast fed infants (mothers poor diet) elderly, schoolchildren (poor veg. intake)

58 Vitamin D Function – Calcium absorption, regulate bone metabolism, healthy immune system Food Sources – Herring, eel, salmon, tuna, milk, some fortified cereals, pork sausage, egg yolk (sunlight) Deficiency – Rickets in children, Osteomalacia in adults Those at risk – Elderly (stay indoors) People living in Northern Climate, People with fat malabsorption

59 Vitamin E Function – Antioxidant, protects cells from attacks by free radicals, role in iron metabolism Food Sources – Vegetable oils, nuts, seeds, green leafy vegetables and a variety of fish Deficiency – Nerve degeneration Those at risk – Premature infants, smokers, people with fat malabsorption

60 Vitamin K Function – Role in coagulation process (blood-clotting) Food Sources – Liver, green leafy vegetables, broccoli, peas and green beans Deficiency – Bleeding disorders, fractures Those at risk – People taking antibiotics for long periods

61 Vitamin C Function – Aids in calcium / iron absorption, immune functions Food Sources – Citrus fruits, potatoes, green peppers, cauliflower, broccoli, strawberries Deficiency – Scurvy, fatigue, bleeding gums and joints Those at risk – Infants, elderly, alcoholics, smokers

62 B Vitamins

63 Minerals The major minerals present in the body include sodium, potassium, chloride, calcium, magnesium, phosphorus, and sulfur. Trace minerals are present (and required) in very small amounts in the body. The most important trace minerals are iron, zinc, copper, chromium, fluoride, iodine, selenium and manganese.

64 Minerals

65 Water Adults are 60-70% water Functions - Maintain the health and integrity of every cell in the body. Help eliminate by-products of the bodys metabolism, excess electrolytes (sodium & potassium). Regulate body temperature through sweating. Dehydration occurs when the water content of the body is too low. This is easily fixed by increasing fluid intake. Symptoms of dehydration include headaches, lethargy, mood changes and slow responses, dry nasal passages, dry or cracked lips, dark-coloured urine, weakness, tiredness, confusion and hallucinations. Recommended intake depends on age, hot environment etc. Averages between 6-10 cups/day

66 Discussion What nutrition do they provide? What age group(s) are targeted? Male or Female or both? Anyone excluded?

67 Benecol Range Benecol Range Benecol® is the only range of foods to contain Plant Stanol Ester, a unique cholesterol lowering ingredient. Plant Stanol Ester works with the body to significantly reduce 'bad' cholesterol by partially blocking its entry to the bloodstream

68 Pot Noodle Pot Noodle

69 Quorn Quorn

70 Coke Zero Coke Zero

71 QUESTIONS: Dietary Requirements for Different Client Groups Lisa M. Hanna-Trainor Institute of Nursing Research University of Ulster


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