The survey tracked the long-term health of a population of American kids born in 2001, and the researchers interviewed the caregivers and parents of the kids when they were 2 and again when they were 4 about what kind of milk the kids drank: skim, 1% semi-skimmed milk, 2% milk, full fat milk or soy.

CNN: Drinking skim milk may not lower child obesity risk

Once children begin drinking cow's milk, they should be given full-fat milk until they are five.

BBC: Mothers 'put babies on diets'

These love to pretend that they live in one of the world's toughest urban jungles, beset by warring gangs and malevolent Nature, when, in reality, the biggest danger they face is that the person behind the counter at Starbucks might mis-hear their order for a double tall, decaf, non-fat latte with a vanilla shot and make their coffee with full-fat milk by mistake.

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It's possible, for example, that the fat in whole milk may help kids to feel more full, and therefore eat fewer calories in a day than those who drink skim milk.

CNN: Drinking skim milk may not lower child obesity risk