It used to be considered that sweets are unhealthy because they contain sugar and glucose-fructose syrup, substances that promote the development of caries and obesity. However, dyes, emulsifiers and preservatives that are used for enriching highly processed food can also be harmful to our body. Artificial additives that are meant to improve the appearance, taste, smell and consistency of delicacies from shop shelves, can negatively affect our health, especially if we consume them regularly. Some synthetic substances from the E 100-199 group, which in the food industry are used for dying candies, contribute to problems with hyperactivity, allergy and asthma.