E numbers are codes for substances that are permitted to be used as food additives for use within the European Union and EFTA.
The International Numbering System for Food Additives (INS) is a European-based naming system for food additives, aimed at providing a short designation of what may be a lengthy actual name.
;Acids: Food acids are added to make flavors "sharper", and also act as preservatives and antioxidants.
The following outline is provided as an overview of and a topical guide to nutrition.
A sugar substitute is a food additive that provides a sweet taste like that of sugar while containing significantly less food energy.
Sweetness is a basic taste most commonly perceived when eating foods rich in sugars.