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about minerals

THE VARIED DIET

MINERALS

MAJOR FUNCTIONS

SOURCES

Calcium

Helps: -

  • to build strong bones and teeth
  • with bone formation and for bone density
  • the heart to beat
Keeps the muscles healthy and helps them contract

Milk

Dairy products

Sardines

Spinach

Broccoli

Fortified cereals

Fortified margarine
Phosphorous

Helps to build strong bones and teeth

Forms part of every cell

Important in genetic material

Forms part of phospholipids (phosphorous-containing lipids)

Is used in the transfer of energy

Is important in pH regulation

Meat

Poultry

Fish

Eggs
Magnesium

Is vital to many basic metabolic functions as an activator of enzymes

Aids in bone growth and the function of nerves and muscles

Dark green leafy vegetables

Legumes (dried beans)

Nuts and seeds

Whole grains

Milk

Wheat bran
Sodium

Is an electrolyte that helps control fluid balance in cells

Aids in muscle flexing and the flow of nerve impulses

Table salt

Soy sauce

Cheese

Smoked and cured meats

Processed and canned foods
Chloride

An electrolyte that helps control fluid balance in cells

Helps maintain pH balance

Forms part of the acid found in the stomach which is necessary for digestion

Table salt

Seafoods

Milk

Meat

Eggs
Potassium

Is an electrolyte that aids in the control of blood pressure and water balance in cells

It helps maintain pH balance

Vital for muscle contraction and nerve impulses

Helps with proper function of heart and kidneys

Is necessary for carbohydrate and protein metabolism

Fruits

Vegetables

Milk

Meat

Poultry

Cereals

Legumes
Sulphur

Forms part of proteins (it has a stabilising function)

Forms part of the vitamins biotin and thiamin, and the hormone insulin

Is involved in body’s detoxification processes
All protein-containing foods

Meats

Fish

Poultry

Eggs

Milk

Cheese

Legumes

Nuts

Iron Healthy blood - helps red blood cells carry oxygen

Iron plays a role in maintaining a healthy immune system

Helps with brain development and function

Iron forms part on enzyme reactions that carry messages from one nerve cell to another
Fortified cereal

Dried beans

Meat

Chicken

Liver

Kidney

Egg yolks

Seafoods
Zinc

Involved in the synthesis or degradation of major metabolites such as carbohydrates, lipids and proteins

Involved in enzyme activity

Helps in the stabilization of the protein and genetic structure in cells

Involved in communication and division of cells

Helps with maintenance of a healthy immune function

Meat

Fish

Poultry

Milk products

Whole grain cereals

Dried beans

Developed by the Nutrition Information Centre of the Univ of Stellenbosch
Francie van Zijl Drive, Clinical Building, Tygerberg 7505, Tygerberg
Designed by Clint D.Pietersen RD(SA)

 

Last updated:
10-Feb-2006

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