evidence: You’ll find mono- and diglycerides on the ingredient lists of packaged and processed foods. They may go by other names, including: [...] Mono- and diglycerides contain small amounts of trans fat. They’re classified as emulsifiers and not lipids, so the FDA ban doesn’t apply to them. As trans fat is phased out, food companies may turn to mono- and diglycerides as low-cost alternatives. [...] Food products with mono- and diglycerides are also likely to be high in other fats, as well as refined sugar and flour.