Nutrition Flashcards
Define nutrition
Process of providing/obtaining food necessary for health and growth
What is the role of vet nurses in patient nutrition?
Educate owners
Feed in practice
Identify diet issues
Define nutrients
Components in the diet that have specific functions in the body
What is the difference between essential and non-essential nutrients?
Essential- can’t be synthesised by the body, need to be in diet
Non-essential- can be synthesised in body, dont need to be in diet
List the classifications of nutrients
Water Protein Carbohydrates Fats Vitamins Minerals
What is the function of water in the body?
Electrolyte balance
Temperature regulation
Homeostasis of internal environment
Chemical reactions
What are the inputs and outputs of water?
Inputs- drinking, food, metabolic water
Outputs- urine, faeces, saliva, sweat, vomiting
What is normal total water loss from the body?
50ml/kg/24hr
What is the main energy source in the body?
Carbohydrates
How are carbohydrates stored in the body?
Fat
Glycogen in muscle and liver
What is the function of carbohydrates in the body?
Energy
Fibre source
Bodily functions
When do carbohydrates cause problems in some patients?
Some cant easily be digested causing diarrhoea or GI problems
Obesity
What are the different types of fibre?
Insoluble- cellulose in veg and cereal grains
Soluble- pectin, fruit, vegetables, beans, oats, lentils
What is the functions of fibre?
Aid GI system
Make faeces softer and bulkier to pass easier
Prevent constipation and diarrhoea
Decrease calorie density
What are problems associated with fibre?
Too much can cause high fecal output
What are the functions of proteins?
Growth Repair Energy Metabolism Nitrogen source Hormone/enzyme production Metabolism regulation
List the 10 essential amino acids
Arginine Methionine Histidine Phenylalanine Isoleucine Threonine Leucine Tryptophan Lysine Valine
What is the additional essential amino acid required by cats and why is it essential for them?
Taurine
Is produced in conversion of methionine or cytosine but this process is too slow in cats
Why cant cats be vegetarian?
Taurine is found in animal protein
What can taurine deficiency in cats do?
Cause blindness and heart problems
Define biological value
Proportion of essential amino acids in protein and how easily available they are
What are sources of proteins?
Meat
Plants
Milk
Dairy
What happens to excess protein?
Broken down by liver and kidneys for excretion but can compromise their function
What are the signs of protein deficiency?
Weight loss Poor growth Dull coat Muscle atrophy Oedema
What are the functions of fats?
Carry fat soluble vitamins Source of essential fatty acids Energy Form cell membranes Improve coat condition Control water loss Insulation Hormone synthesis
What is the most important type of dietary fats?
Triglycerides
What are sources of fat?
Animal fat Vegetable oil Oily fish Red meat Dairy
What are the essential fatty acids?
Linoleic acid- essential for all animals
Linolenic acid- synthesised from linoleic acid
Arachidonic acid- synthesised from linoleic acid
Which species cant synthesised arachidonic acid so need it in their diet?
Cats
What are symptoms of essential fatty acid deficiency?
Impaired reproductive function
Impaired wound healing
Dry coat and skin