2% milk has half the fat of whole milk.
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Just looked at a gallon of whole milk and it contains “total fat 12% - saturated fat 25% of all fat”.
I drink whole milk, occasionally I buy Half & Half but at $4 per half gal. it’s a bit expensive.
Standard resources, including technical chemistry ones, list whole milk as less than 4% total fat. The percent of total calories in milk that come from the fat is higher.
http://www.healthyeating.org/Milk-Dairy/Dairy-Facts/Types-of-Milk.aspx
Whole milk has 3.5% milk fat
2% milk has 2% milk fat