Question

what is malnutrition? explian some nutrition deficiency diseases

Answer 1

Eating of food that does not have one or more than one nutrients in required amount is known as malnutrition.
Malnutrition is of three types
1) Calorie malnutrition 2)Protein malnutrition 3)Protein calorie malnutrition 
1.Kwashiorkor disease: This is due to protein deficiency in diet .Body parts become swollen due to accumulation of water in the intercellular spaces.Very poor muscle development ,swollen legs,fluffy face,difficult to eat ,diarrhoea,dry skin are the symptoms of this disease.
2. Marasmus : This is due to deficiency of both proteins and calories. Generally this disease occurs when there is an immediate second pregnancy or repeated child births.
Lean nad weak,swelling limbs,less developed muscles,dry skin,diarrhoea etc., are the symptoms of this disease.

Answer 2

The condition of nutrition in which food is either in inadequate quantity or lacks some essential nutrient is known as malnutrition.
Nutrition deficiency disease--
1.marasmus
2.kwashiorkor