No harm.

Modified soy lecithin is a food additive and is safe for the human body. It is widely used in food processing as emulsifier, stabilizer and antioxidant. The amount of modified soy lecithin used in food is very small and will not have obvious adverse effects on human health. For some people, there is an allergy or intolerance to soy, and people may experience allergic reactions or indigestion when ingesting modified soy lecithin.