Minerals Home Economics PDF
Document Details
Uploaded by HeartfeltEpigram
University College Dublin
Tags
Summary
The document provides information on minerals, focusing on macro and trace minerals, their functions in the body, sources, and recommended daily allowances (RDA). It includes calcium as an example.
Full Transcript
### Home Economics: Minerals **Macro minerals**: - Required in large amounts - Calcium, phosphorus, potassium and sodium **Trace Minerals**: - Only needed in small amounts - Iron, zinc, iodine **Calcium**: - 99% of the body's calcium is in the bones and teeth - 71% is in the blood, nerves and mus...
### Home Economics: Minerals **Macro minerals**: - Required in large amounts - Calcium, phosphorus, potassium and sodium **Trace Minerals**: - Only needed in small amounts - Iron, zinc, iodine **Calcium**: - 99% of the body's calcium is in the bones and teeth - 71% is in the blood, nerves and muscles **Functions**: - Aids formation of strong bones and teeth - Assists blood clotting - Aids muscle contraction **Sources of calcium**: - Milk - Almonds - Cheese - Leafy green vegetables, spinach **Deficiencies**: - Increased risk of bone diseases (rickets, osteomalacia and osteoporosis) and dental decay - Slow blood clotting of blood vessels which can cause haemorrhaging - Muscles fail to relax after contraction → spasms & cramp **RDA**: - Child = 800 mg - Teen = 1200 mg - Adult = 800 mg - Pregnancy = 1200 mg
