Potassium

1
Potassium
2
Functions

• 1. Necessary for protein metabolism
• 2. Required for nerve transmission and muscular
  contraction, e.g. in the heart

3
Deficiency

• 1. Rare due to wide availability of sources
• 2. May cause muscular weakness, fatigue and
  cardiac arrest.

4
RDA

• Adult 3.5 g

5
Sources

• Found in most foods e.g.
• Meat
• Milk
• Wholegrain cereals
• Fish
• Bananas
• Oranges