Malnutrition

• Biologie
• Middelbare school
• havo
• Leerjaar 2

Lesson 2

Objectives: 

Revision BMI

Understand what malnutrition is and being able to give some examples

What are the limitations of BMI?

Malnutrition

How does (the lack of) nutrition impact health globally?

What is malnutrition?

NOTE! 

Malnutrition happens when your diet does not contain the right amount of nutrients.

The term malnutrition covers two groups of conditions:

- overnutrition

- undernutrition

Overnutrition

Overnutrition is a form of malnutrition arising from excessive intake of nutrients.

 

> It leads to an accumulation of body fat that impairs health.

> It can also mean you have an overdose of vitamins and minerals

                                                                              Example: polarbear liver...

Undernutrition

Undernutrition is a form of malnutrition arising from an insufficient intake of nutrients.

 

> Undernutrition is a problem that affects developing as well as industrialised countries.

Activity 1

1. Complete the table 

2. What are the treatment options for these deficiencies? Write them down.

3. Can you find any other related deficiencies? Write them down.

Name of disease	What is wrong with the diet?	Symptoms
Scurvy
Rickets
Pellagra
Beri beri
Goitre
Kwashiorkor
Marasmus

1. Complete the table. 

2. What are the treatment options for these deficiencies? Write them down.

3. Can you find any other related deficiencies? Write them down.

Name of disease	What is wrong with the diet?	Symptoms
Scurvy	not enough vitamin C	wounds don’t heal, bones and teeth unhealthy, gum problems
Rickets ( video )	not enough vitamin D	brittle bones, bent bones, lack of development
Pellagra	not enough niacin (vitamin B3)	skin problems, dementia, anger, weakness
Beri beri	not enough thiamine (vitamin B1)	vomiting, nausea, weakness of muscles
Goitre	not enough iodine	swelling of the neck
Kwashiorkor	not enough protein	swollen stomach, poor growth
Marasmus	not enough nutrients	loss of body fat/muscle tissue and dehydration

Getting ready for the next lesson (about energy). Put down the word equation for 'cellular respiration'.

In what cell organelle does cellular respiration take place?

1. nucleus
2. cytoplasma
3. mitochondria
4. vacuole

MP4 website

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