Micronutrients Flashcards
What are micronutrients?
Nutrients we need in small amounts
What are examples of micronutrients?
1) Vitamins
2) Minerals
3) Trace elements
What are vitamins?
Organic compounds( they come from plants and animals) and are used in processes that keep us alive and well.
Where are fat soluble vitamins found?
In fatty foods such as :
1) meat
2) fish
3) animal-based products
4) vegetable oils
What are the four FAT SOLUBLE vitamins?
Vitamins A,D,E, and K
What do you know about Vitamin A i.e. function, main source, what happens if you rarely eat it, recommended intake.
Vitamin A is needed for good eyesight, healthy immune system and skin
The main source is retinol, found in liver,butter,oily foods and eggs
Too much vitamin a can weaken bones and foods containing very high levels need to be avoided during pregnancy
The NHS recommends 0.7mg of vitamin A for men and 0.6 mg for women each day.
What do you know about Vitamin Dv i.e. function, main source, what happens if you rarely eat it, recommended intake.
Vitamin D helps the body absorb various minerals including calcium, which is important for the development of healthy bones and teeth
Too much can make you absorb too much calcium which leads to kidney damage
Too little can lead to bone diseases like osteomalacia(where bones become soft),rickets and osteoporosis(where bones become brittle)
The NHS recommends 0.01 mg of vitamin D a day, although in summer most of us should be able to get enough through natural exposure to the sun
What do you know about Vitamin E i.e. function, main source, what happens if you rarely eat it, recommended intake.
Vitamin E is important as it keeps the skin and eyes healthy and immune system
Found in leafy greens,vegetable oils, and wheat germ
Too much can interfere with blood clotting cause nausea and blurred vision
Too little is rare but leads to weak muscles and eyesight issues
NHS recommend 4mg of vitamin E for men and 3mg for women each day
What do you know about Vitamin K i.e. function, main source, what happens if you rarely eat it, recommended intake.
Vitamin KJ helps clot blood, heal wounds, and maintain immune system and bones
Found in leafy greens ,cereals ,vegetable oils ,plus some meats and dairy foods.
There is no excessive level of Vitamin K
Having too little is extremely rare but it can cause uncontrolled bleeding in new-borns
NHS recommend a daily intake of 0.001mg of Vitamin K for every kg of body weight.
What happens to fat soluble vitamins that arent used up by the body?
They are stored in fat tissues for future use. This means that we don’t necessarily need to take in the same amount of each vitamin every day.
Where are water soluble vitamins stored?
They aren’t generally stored in the body so we need to take them in daily
What does “water-soluble”?
dissolves in water
What do you know about Vitamin B1 i.e. function, main source, what happens if you rarely eat it, recommended intake.
Function- Helps the nervous system and with energy release from foods.
Sources include- Bread, pasta, rice, peas, eggs, and liver
Problems caused by having little- Tiredness, weakness and beriberi(in severe cases) a disease that affects the heart, blood vessels and nervous sytem
What do you know about Vitamin B2 i.e. function, main source, what happens if you rarely eat it, recommended intake.
Function- Helps with energy release from foods and repair of tissues
Sources include- Milk, eggs, cheese and leafy greens
Problems caused by having too little- Dry skin, a sore throat and sores around the mouth
What do you know about Vitamin B3 i.e. function, main source, what happens if you rarely eat it, recommended intake.
Function- Helps wit energy release from foods and maintaining a healthy nervous system and skin
Sources include- Wheat, nuts, meat and fish
Problems caused by having too little- Pellagra(a disease causing fatigue, depression and loss of memory)