2. What people really want to know when they ask if Soy Lecithin is Paleo is whether itâs healthy. But like the first question, this question is dumb for the same 2 reasons: First, the answer is pretty obvious: Of Course Not.tâs used in a very wide variety of foods, including confectionery, doughs, and cooking sprays, and candy bars. The main benefit of soy lecithin is that it acts as an emulsifier, which means that it stabilized foods like candy bars and makes them stick together instead of breaking apart.