Potassium

Sources of Potassium

Green Leafy Vegetables

Such as spinach, kale, and swiss chard.

Pulses

Like lentils, chickpeas, and beans.

Fruits

Including bananas, oranges, apricots, and avocados.

Other Sources

Potatoes, sweet potatoes, dried fruits, meat, milk, nuts, fish, bread, mushrooms, wholegrain cereals, and liquorice.

Functions of Potassium

Maintains Fluid Balance: Helps in maintaining homeostasis by regulating the balance of fluids in body tissues.

Cell Formation: An essential component of cell fluids, potassium is necessary for the formation of cells.

Neurological Function: Vital for healthy nerve activity and normal muscle function, including the heart muscle.

Effects of Potassium Deficiency

Muscle Weakness and Cramps: Due to its role in muscle function, a lack of potassium can cause muscle weakness, cramps, and spasms.

Cardiac Problems: Potassium is crucial for heart health, and its deficiency can lead to arrhythmias and other heart-related issues.

Fatigue and Irritability: Low potassium levels can lead to general fatigue, irritability, and mood swings.

Recommended Dietary Allowances (RDAs) for Potassium

The RDA for potassium varies based on age, gender, and life stage. Generally, adults need about 2,600 to 3,400 mg per day. However, students should refer to specific guidelines provided for different demographic groups.

Example Exam Questions and Answers

1. List two significant functions of potassium in the human body.

Potassium maintains the fluid balance in body tissues and is necessary for healthy nerve activity and normal muscle function.

2. Identify two common dietary sources of potassium.

Bananas and green leafy vegetables like spinach are common sources of potassium.

3. Describe the impact of potassium deficiency on muscular health.

Potassium deficiency can lead to muscle weakness, cramps, and spasms due to its essential role in muscle function.

4. What is the recommended daily intake of potassium for adults?

The recommended daily intake of potassium for adults is about 2,600 to 3,400 mg per day, depending on various factors like age and gender.

5. Explain how potassium contributes to maintaining homeostasis in the body.

Potassium helps maintain homeostasis by regulating the balance of fluids in the body's tissues, crucial for normal cell function.