Mother of world's 'fattest baby' tells how rare condition means her baby has ballooned to size of a nine-year-old despite being only 10 months old

15:03 • 13.11.17

A Mexican mother whose 10-month-old son weighs the same as a nine-year-old has spoken out about his mystery condition.

Isabel Pantoja, 24, from the Pacific coast state of Colima, said at first she assumed the baby Luis's growth was down to the fact that “I had good breast milk” but now she is desperately worried for her son.

She also revealed the family take it in turns to push the boy to a local hospital where doctors are baffled by his condition, reports the Daily Mail.

One of the main hypotheses is that the boy could have a disease called Prader-Willi Syndrome, a genetic condition in which children have an insatiable appetite and weak muscle tone.

However, Luis does not eat voraciously or spend the day demanding food.

Medics are considering giving him with hormone treatment that can cost $555 per shot, despite his father earning just $200 per month. 

At birth Luis weighed 3.5kg (8lbs), about the same as his brother Mario, who is almost three but is now dwarfed by his baby brother.

At two months of age, Luis weighed 10kg (22lbs). Over the next eight months he gained a staggering 18kg (40lbs). 

His parents have since created a Facebook page and opened a bank account for people to donate money for Luis Manuel's medical care.

They take turns pushing him to the hospital in a decrepit stroller for daily blood tests.


Luis Gonzales, a 10-month-old baby from Mexico, weighs as much as a nine-year-old and doctors are at a loss to understand why

Mother Isabel Pantoja, 24, said she initially thought his rapid growth - from weighing 3.5kg (8lbs) at birth to 10kg (11lbs) aged two months - was because 'I had good breast milk'

While most Prader-Willi sufferers constantly bed for food, Luis does not, leading to an alternative theory that he is suffering from a hormone imbalance

Father Mario said it is becoming difficult to lift or hold his son because of his weight

If medics are right and Luis is suffering a hormone imbalance, they may have to pay for shots costing $555 each - despite only earning $200 per month

Family members have to take it in turns pushing him to the hospital, and say the stroller once collapsed beneath him

Luis's weight means he cannot crawl or walk, and even struggles to sit upright




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