#DEFICIENCY DISEASES #COMPONENTS OF FOOD/CHAPTER 2/CLASS 6/SCIENCE/NCERT,#GK- Competitive exams #KWASHIORKOR,#MARASMUS, #PEM #Protein energy #mal nutrition#VITAMIN DEFICIENCY DISEASES,#MINERAL DEFICIENCY DISEASES #iodine#calcium#sodium,#potassium #vitamin A #vitamin B #vitamin C #vitamin D #vitamin K