As of March 2015, most varieties of Hidden Valley ranch dressing are not fat-free. Only Hidden Valley Original Ranch dressing is available in a fat-free version.
Light versions of Hidden Valley ranch dressings contain less fat than its regular dressings, but they are not fat-free. These dressings contain 5 to 7 grams of fat per serving. Flavors of Hidden Valley light ranch dressings include original, cucumber, buttermilk and fiesta salsa. Regular ranch dressings, with 9 to 14 grams of fat, are also available from Hidden Valley. In addition to Original Ranch, Hidden Valley offers buttermilk, avocado, cucumber, sweet chili and roasted garlic flavors in regular ranch dressings.