The difference between Marasmus and Kwashiorkor is that:

The main cause of beri-beri disease is:

In Africa and South-East Asia,people prefer to consume more bread and butter than pulses. Which deficiency disease are they likely to suffer from?

The gross calorific value of proteins is:

Which group of three of the following five statements $(1-5)$ contains all three correct statements regarding beri-beri?
$1.$ $A$ crippling disease prevalent among the native population of sub-Saharan Africa.
$2.$ $A$ deficiency disease caused by lack of thiamine (vitamin $B_1$).
$3.$ $A$ nutritional disorder in infants and young children when the diet is persistently deficient in essential protein.
$4.$ Occurs in those countries where the staple diet is polished rice.
$5.$ The symptoms are pain from neuritis,paralysis,muscle wasting,progressive oedema,mental deterioration,and finally heart failure.

Which combination is incorrect?