Eat or Avoid
E422

Glycerol

Also known as: Glycerine, Glycerin

EmulsifiersSweetenersHumectantsThickeners

Safety rating

Generally Safe

Eat Away!Generally SafeUse SparinglyAvoid

Purpose and Function

Glycerol is a naturally occurring sugar alcohol used as a humectant to retain moisture in foods, a mild low-glycemic sweetener, a solvent for flavorings and colorings, and an emulsifier and bulking agent.

Commonly found in

  • Cakes, candies, and baked goods (moisture retention)
  • Sugar-free and low-sugar products

Key functions

  • Retains moisture in food
  • Provides mild sweetness
  • Dissolves flavorings and colorings evenly
  • Adds bulk without significant calories

Potential Risks and Side Effects

  1. 01Generally regarded as safe (GRAS) by the FDA and EFSA
  2. 02Excessive consumption can have a laxative effect — bloating, gas, or diarrhea
  3. 03Very high doses may draw water into the intestines, risking dehydration if fluid intake is inadequate
  4. 04Contains about 4.3 calories per gram, contributing modestly to caloric content despite being marketed in sugar-free products

References

    Related Additives