Week 2 Flashcards
What is the correct nutrition?
All essential nutrients supplied
- Food is whole and organic
- Food is free of GMO and toxins
- Food is not processed and not cooked using a microwave
- Food is correctly combined to achieve optimum nutrition of the body
What are the benefits of correct nutrition?
- Optimal energy and activity levels
- Normal body growth and repair and reproductive function
- Resistance to infection and disease
- Optimum physical and mental health
What are Essential nutrients and their functions ?
- Carbohydrates: provide energy and heat
- Proteins: build and repair body tissues and provide heat and energy.
- Fats: provide heat and energy
- Vitamins: regulate body functions
- Minerals: regulate body functions
- Water: regulates body functions
- Phytonutrients: support human physiology
- Enzymes: catalysts for biochemical reactions
What are the three main carbohydrates groups ?
- Single sugars (monosaccharides)
- Double sugars (disaccharides)
- Complex carbohydrates (polysaccharides)
What are the three
single sugars (monosaccharides) ?
- Glucose (key energy source)
- Fructose – fruit sugar
- Galactose – milk sugar
What are the complex carbohydrates (polysaccharides)
- Starches – found in foods such as bread, rice, pasta, grains, vegetables, legumes etc
- Cellulose – the structural material plants (found in plant walls), provides dietary fibre
Complex carbohydrates:
- Retain their rich nutrients
- Are digested more slowly, promoting satiety and help to keep blood glucose in balance
What are the benefits of fibre for the microbiome?
Feeds the microflora, resulting in numerous health benefits
Fermentation of some fibre in colon by healthy bacteria produce short chain fatty acids
= fuel source for colon cells
= reduces local inflammation
= effects throughout whole body such as blood glucose control, cholesterol moderation
What are the functions of Protein ?
From the Greek - “First importance”
- Provide body tissue structure e.g. in skin, bones, blood vessels, hair
- Provide movement (e.g. muscles)
- Carry substances (e.g. haemoglobin – oxygen)
- Act as enzymes (e.g. digestive enzymes)
- Form hormones (e.g. insulin)
- Provide immune defense (e.g. antibodies)
- Provide alternative energy source (less efficient than carb/fats)
How many Amino acids are commonly used in the human body?
20 amino acids
How are Amino acids categorised?
- Non-essential amino acids: produced by the body, not required in the diet
- Essential amino acids (9 of them): not produced by the body, must be in the diet
- Conditionally essential amino acids: some non-essential AAs become conditionally essential in certain circumstances, e.g. at certain ages or during diseases
Which plant proteins are complete ?
- Quinoa – gluten-free and versatile
- Buckwheat – not actually wheat
- Pumpkin seeds
- Chia seeds
What are the properties of lipids ?
- Lipids include fats, oils, waxes, steroids and fatty acids
- Lipids are insoluble in water and soluble in alcohol
- They are an important component of cells (e.g. cell membranes)
- Lipids in the diet is essential to health
- Eating too much of the wrong type of fat, can lead to weight gain
What are the three types of Fatty acids. Give examples of each type ?
- Saturated fatty acids: e.g. coconut oil and butter
- Polyunsaturated fatty acids: Omega 3 and 6
- Monounsaturated fatty acids: Omega 7 and 9
What affects the degree of saturation of a fatty acid?
The number of hydrogen molecules within a fatty acid.
- Fatty acids fully loaded with hydrogen atoms are ‘saturated fatty acids’.
- ‘Unsaturated’ fats have hydrogen atoms is missing (and will have double bonds in the fatty acid chain)
What are the sources of Omega-3?
Cold water oily fish – SMASH
Flaxseed
chia seeds
hemp seeds
walnuts
SMASH = salmon, mackerel, anchovies, sardines, herring
What are signs and symptoms of EFA deficiency?
- Dry eyes, skin and hair
- Painful joints (inflammation)
- Hormonal problems
- Inflammation
- Slow cognition
- Recurrent infections
- Low metabolic rate and weight gain
What effects do Trans-fats have on health?
- Increase risk of heart disease
- Increased risk of blood clots forming
- Trans-fats ‘stiffen’ cell membranes, making them prone to oxidative damage and making cell membranes leaky
Sources of Healthy fats
- Fruit: avocado, olives
- Seeds: chia, flax, sunflower, pumpkin, hemp, seed butters
- Seed oils: flax, chia, hemp, sunflower, olive oil –ensure oils are cold pressed
- Nuts: almonds, cashews, Brazil nuts, walnuts, nut butter
- Organic raw dairy, coconut
- Oily fish: salmon, mackerel, sardines, anchovies
What are the functions of water in the body?
Water is an essential nutrient that makes up 70% of the human body
1.5L lost in uring
1L lost in sweat
- Regulates body temperature
- Transports nutrients to cells via the bloodstream
- Removes wastes (e.g. sweat, urine)
- Supports joints/cartilage health and nourishment
- Needed for digestion (e.g. bile, saliva), absorption, circulation and excretion
Organ-specific actions
What term means restoring the function of the organ?
Trophorestorative
List some organ-specific actions
Cardiotonic
Hepatic
Nervine
List some function-specific actions
- Nootropic
- Pectoral
- Laxative
- Emmenogogue
- Bitter Tonic
- Diaphoretic
- Diuretic
List some general actions
- Alterative
- Stimulatant
- Astringent
- Demulcent
- Expectorant
- Vulnerary
List herbs with Alterative actions (14)
- Bearberry Arctostaphylos uva-ursi
- Rose petals Rosa damascena
- Marigold flowers Calendula officinalis
- Nettle leaf Urtica dioica
- Red clover Trifolium pratense
- Dandelion Taraxacum officinale
- Yellow dock Rumex crispum
- Poke root Phytolacca americana
- Cleavers Galium aperine
- Echinacea Echinacea purpurea/angustiafolium
- Barberry bark Berberis vulgaris
- Mountain grape root Berberis aquifolium
- Burdock root Arctium lappa
- Garlic Allium sativum
List some anthelmintic herbs (8)
- Garlic
- Rue
- Wormwood
- Black Walnut hull
- Mugwort
- Cloves
- Hyssop
- Pumpkin seeds
What are Vitamins?
Vitamins are organic* compounds that are essential to the body in small amounts for normal growth and function
*compound containing carbon
How many Vitamins are there?
13
What are the principal functions of Vitamins?
- Support the immune system
- Regulate gene expression*
- Support neurological activity
- Facilitate ATP and blood cell production
*‘on/off switch’ requiring co-factors such as vitamins
Fat-soluble vitamins
What are the functions of Vitamin A?
- Support visual acuity and corneal health
- Controls cell division; assists skin and mucous membrane integrity
- Supports immune and reproductive health
Fat-soluble vitamins
What are the deficiency signs and symptoms of Vitamin A?
- Vision impairment
- Dry skin/hair
- Recurrent infections
- Poor growth
Fat-soluble vitamins
What are the functions of Vitamin D?
- Calcium absorption and bone mineralization
- Support healthy immune regulation*
*therefore deficiency implicated in auto-immune conditions
Fat-soluble vitamins
What are the deficiency signs and symptoms of Vitamin D?
- Poor bone and tooth formation
- Bowed legs
- Poor immunity or immune dysfunction e.g. infections, autoimmunity, allergies
Fat-soluble vitamins
What are the functions of Vitamin E?
Functions:
- Antioxidant – protects fatty acids from oxidation (cell-membrane protection)
- Protective against cardiovascular disease*, Alzheimer’s and cancer
- Immune development and activity**
*because decreases arachidonic acid **supports NK cell production
Fat-soluble vitamins
What are the deficiency signs and symptoms of Vitamin E?
Overt deficiency is rare
* Red blood cell destruction – exhaustion after light exercise
* Easy bruising and slow healing (fewer antioxidants)
* Nerve damage (e.g. neuropathy) due to oxidation