Use an oil-based salad dressing
Here’s why: Many nutrients—specifically vitamins A, D, E, and K—are fat soluble, which means your body can’t absorb and use them without some fat present. So a fat-free dressing is actually counterintuitive!
In fact, a recent Iowa State University study found that people who ate salads dressed with a canola or olive oil-based dressing had higher levels of carotenoids (vitamin A-like compounds) in their blood. Plus, ample research shows these unsaturated fatty acids can help melt belly fat and make your salad more filling.
Even better? Toss the oil with vinegar, a proven fat releaser: Studies show it can help prevent blood sugar spikes after meals.