Major Minerals- Magnesium

Question 1

What are sources of magnesium?

Answer 1

-dark green veg
-Meat
-Milk/ milk products
-Cereals

Question 2

What are functions of magnesium

Answer 2

-Helps with formation of bones and teeth, and therefore essential for growth
-Cellular metabolism- present in ionic form of all tissues- plays a part in many reactions involved in production, transport and utilisation of energy
-Involved in synthesis and manufacturing of proteins
-Present in cell fluids and needed for enzyme activity, thus assists in the control of muscle tone of the heart and blood pressure

Question 3

Explain the absorption/ Deficiency (Bioavailability) of magnesium

Answer 3

-BODY REGULATES ABSORPTION VERY EFFICIENTLY
-Deficiency- rare
-Deficiency is likely as a result of kidney damage, not a low intake- symptoms hard to recognise
-Occur in alcoholics- or where absorption is decreased- surgery/ burns
-50-60%- stored in bones- key role in metabolism
-Diet low- unwanted increases in inflammatory processes

Question 4

What is an excess in magnesium

Answer 4

-Not common- body elimitates excess amounts
-Signs- vomitting, extreme low blood pressure
-Occurs when magnesium is supplemented

Question 5

What are interactions with magnesium

Answer 5

-Assists absorption of calcium and potassium- body may lose mg due to excessive calcium
-Together with B12- prevent calcium oxalate kidney stones

Question 6

What are the effects of Magnesium on Cooking

Answer 6

-Lost in cooking
-Cook in minimal amount of water