The Yuka app will soon empower users to contact food manufacturers regarding controversial additives in their products. Co-founder Julie Chapon remarked that public authorities are slow to ban harmful substances, while consumer action is vital. With 60 million users globally, Yuka helps identify 55 problematic additives and now allows users to directly email or message manufacturers to request changes. Experts assert there are always better alternatives to potentially harmful additives, highlighting a shift towards healthier food practices in response to consumer demand.