Food Additives   A food additive is a substance added in small amounts to a foodstuff in a technical purpose (storage , production , appearance ...) , sensory (flavor , color , texture ...).  
A food additive may:  - Be a natural substance (of mineral , vegetable or animal); 
 - Be a synthetic product (reproducing natural qualities); 
 - Be artificial (not existing in nature). 
 What are the regulatory issues?  Food additives meet European directives that define:  - A "positive" list of authorized additives (everything that is not expressly permitted is prohibited); 
 - A list of foods to which they can be added; 
 - Their maximum allowable dose; 
 - Purity criteria for these products. 
 The control of additives in food is provided by the Directorate General for Competition , Consumer Affairs and Fraud Control (DGCCRF).  
  The maximum levels of additives in food are laid down so as not to exceed the acceptable daily intake (ADI): amount of an additive that can be ingested daily without risk to health (in mg / kg of body weight).  
What are the different types of food additives? 
 Nearly 350 food additives are permitted.  Nomenclature distinguishes 24 categories of additives according to their technological effects on the food: colorings , preservatives , antioxidants , sweeteners , acidifiers , acidity , flavor enhancers , emulsifiers , gelling agents , stabilizers , thickeners , baking powders , propellants gas , packaging , anti-caking agents , antifoaming agents , firming agents , charge , melting salts , coating agents , humectants , modified starches , sequestering agents treatment. 
 The list of authorized additives is long. It takes the form of a code with the letter E (Europe) followed by a number indicating its class numbering from E 100 to E 1518. 
 For example: 
 - Colors: E 100 family; 
 - Conservatives: Family E 200; 
 - Anti-oxidants: Family E 300; 
 - Texture agents: family E 400; 
 - ... 
Food additives are they really necessary?  Some additives are essential for both conservation for manufacturing. Such is the case: 
 - Preservatives (nitrites , nitrates , sulfites , sulfur dioxide , calcium propionate , Ascorbic Acid ...) , which prevents the degradation of vitamins , the formation of mold or bacterial contamination; 
 - Antioxidants that prevent rancidity of fats , oxidation of cut fruits and vegetables; 
 - Emulsifiers and texture agents that improve the presentation , give soft or holding liquid preparations. 
 Side taste , sweeteners are used to impart a sweet taste , flavor enhancers or be designed to increase flavor , flavors are for flavor , odor sometimes even color , acidifying increase the acidity of a food ... 
 Given the multitude of additives used , one can nevertheless wonder if some are really useful. 
 What should I be wary?  We must beware of candy , confections , syrups and ice water full of additives , including colorings , in addition to providing empty calories and nutritional plan to be cariogenic (promote dental caries).