If you're using fat free dressing on your salad, you're doing it all wrong. According to scientists, you need to eat salad with fat-based dressings to get the most out of the veggies. Having no fat in your salad actually diminishes the benefit from eating vegetables. This sounds a little crazy, right? But yes, even though fat free dressing has less calories than its fatty filled counterpart, you're not getting the full oomph you want when eating vegetables with skinny dressings. Researchers at Purdue University compared salad eating with dressing that had saturated fat, monounsaturated fat and polyunsaturated fat at...