Water soluble vitamins
- Created by: aoifegrieve16
- Created on: 28-11-18 11:54
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- Water soluble vitamins
- Vitamin B1 (Thiamine)
- FUNCTIONS
- Muscle contraction
- Breakdown + release of energy from carbs
- nervous system
- Red blood cells + enzyme functioning
- growth + good health
- SOURCES
- peas
- breakfast cereals
- bread
- beans
- vegetables
- EXCESS EXCRETED
- DEFICIENCY
- Beriberi- kidney dialysis can increase risk
- Build up of pyruvic acid which causes muscle weakness + heart palpitations
- BIOAVAILABILITY + ABSORPTION
- Alkaline condition speeds up loss of thiamine
- FUNCTIONS
- Vitamin B2 (Riboflavin)
- FUNCTIONS
- Energy release - macronutrient
- Promotes iron metabolism
- nervous system health
- skin + eye health
- SOURCES
- milk
- rice
- liver
- cheese
- yoghurt
- fortified cereals
- EXCESS EXCRETED
- DEFICIENCY
- sluggish metabolism
- cracks at corner of mouth
- scaly skin
- blood vessels invade corner of eyes
- FUNCTIONS
- Vitamin B3 (Niacin/ nicotinic acid/ formed from tryptophan)
- FUNCTIONS
- energy release
- healthy nervous + digestive system
- essential for normal growth
- cardiovascular system
- SOURCES
- meat
- fish
- wheat
- flour
- EXCESS EXCRETED
- DEFICIENCY
- dermatitis
- diarrhoea
- dementia
- Untitled
- ABSORPTION
- More resistant to heat
- FUNCTIONS
- Vitamin B6 (Pyridoxine)
- SOURCES
- Pork
- Poultry
- Fish
- Eggs
- Milk
- Veg
- Bananas
- FUNCTIONS
- Enzyme system
- Protein synthesis
- Hormones
- haemoglobin
- Healthy skin + nervous system
- antibodies help fight ection
- EXCESS can cause nerve damage over long time
- DEFICIENCY
- Anaemia
- Dry cracked lips
- Swollen tongue
- Deficiency of vitamin c
- SOURCES
- Vitamin B12 (CYANCOBALAMIN)
- FUNCTIONS
- keeps body healthy
- produces DNA + RNA
- works w/ folic acid
- enzyme systems
- healthy nerves
- SOURCES
- eggs
- liver
- milks
- cheese
- EXCESS - outbreaks of acne
- DEFICIENCY
- anaemia
- behavioural changes
- nerve problems
- Rare (vegans)
- ABSORPTION
- stable
- some loss in alkaline medium
- absorption assisted by folate
- FUNCTIONS
- Vitamin b9 (folate)
- FUNCTIONS
- neural tube development
- energy release
- homocysteine levels
- cancer protection
- brain functions
- SOURCES
- green leafy veg
- fruit
- liver
- bread
- DEFICIENCY
- megaloblastic anaemia
- NTDs
- mouth ulcers
- fatigue
- increase risk of breast cancer
- EXCESS - NERVE DAMAGE
- ABSORPTION
- Some lost by cooking in liquid alkaline solution
- destroyed by heat oxidation
- more difficult for elderly
- FUNCTIONS
- Vitamin C
- FUNCTIONS
- wound healing
- antioxidant
- collagen
- absorption of iron
- SOURCES
- oranges/citrus fruits
- potatoes
- EXCESS - harmful for kidney disease/ may cause nausea/ diarrhoea
- DEFICIENCY
- Scurvy
- Poor wound healing
- dry skin/scalp
- irritability
- weakening body tissue
- ABSORPTION
- Soluble in water
- Unstable to heat
- used quicker under stress
- FUNCTIONS
- Vitamin B1 (Thiamine)
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