Excess intake of food calories,especially food with little water,sugar,honey,and ghee causes:

The earliest known vitamin is:

Calcium deficiency in the body occurs in the absence of

Which group of three of the following five statements $(I-V)$ is correct regarding beriberi?
$I.$ $A$ crippling disease prevalent among the native population of sub-Sahara Africa.
$II.$ $A$ deficiency disease caused by lack of thiamine (vitamin-$B_{1}$).
$III.$ $A$ nutritional disorder in infants and young children when the diet is persistently deficient in essential protein.
$IV.$ Occurs in those countries where the staple diet is polished rice.
$V.$ The symptoms are pain from neuritis,paralysis,muscle wasting,progressive oedema,mental deterioration and finally heart failure.

Deficiency of Vitamin $A$ results in ...... .

Which one of the following pairs is not correctly matched?