The chemical structure of additives with small molecules is highly hydrogen-bondable (so they combine with water) and bridgeable (so they combine with food). Therefore, they make the food more delicious. Since this type of additive is very easy to synthesize and thus inexpensive, it is naturally favored by manufacturers.
小分子添加物的化學結構上，具有高氫鍵性（抓水性）、架橋性（與食物緊密相接）等，會讓食品「愈吃愈好吃」；也因這類添加物極容易合成，成本低廉，自然是業者的優先選擇。