The food they eat in a week is enough to feed two families in a month in their village in Gujarat, western India, Mirror reports.
But their father, a poor farmer, Rameshbhai Nandwana, 34, is so desperate for medical help for them, fearing they could die and now planning to sell his kidney to be able to meet up with medical bills.
Little Harsh gulps down eight glasses of milk a day, his sisters Yogita and Anisha devour eight chapatis (Indian bread), 2kg of rice and three bowls of broth, six packets of crisps, five packets of biscuits, one dozen bananas and a litre of milk every day.
Their uncontrollable hunger keeps their mother Pragna Ben, 30, in the kitchen the whole day. Sadly, the toddlers are also unable to walk by themselves.
Crippling: Despite his paltry income, Rameshbhai spends approximately Rs 10,000 (£110) a month on food for his children.