what is PEM? Mention its two forms. Bring out two differences between them.

PEM - ​protein energy malnutrition

Types include:

• Kwashiorkor (protein malnutrition predominant)
• Marasmus (deficiency in calorie intake)
• Marasmic Kwashiorkor (marked protein deficiency and marked calorie insufficiency signs present, sometimes referred to as the most severe form of malnutrition)

The definition is 1 difference​

The symptoms of marasmus include:

• weight loss
• dehydration
• chronic diarrhea
• stomach shrinkage

• The symptoms of kwashiorkor include:

• edema, or puffy or swollen appearance due to fluid retention
• bulging of the abdomen
• an inability to grow or gain weight