Comparing E270 - Lactic acid vs E297 - Fumaric acid

Synonyms
E270
Lactic acid
milk acid
2-Hydroxypropanoic acid
E297
Fumaric acid
trans-Butenedioic acid
Products

Found in 18,751 products

Found in 3,925 products

Search rank & volume
#2094.4K / mo🇺🇸U.S.
#2362.4K / mo🇺🇸U.S.
Awareness score

×0.74
under-aware

×0.09
under-aware

Search volume over time

Interest over time for 4 keywords in U.S. during the last 10 years.

Interest over time for 3 keywords in U.S. during the last 10 years.

Popular questions
  1. Does milk help acid reflux?

    Milk can briefly buffer stomach acid, but its fat and protein may stimulate acid production later, so effects vary by person; fermented dairy contains lactic acid (E270), whose acidity helps tartness and may help or bother individuals depending on sensitivity.

  2. How to drain lactic acid from legs?

    You don’t need to “drain” it—exercise-produced lactate (the same molecule as food additive E270 in ion form) is naturally cleared or reused for energy within about an hour. Muscle soreness after workouts is from microdamage, not trapped lactic acid; light movement and time help.

  3. What does lactic acid do?

    In foods, E270 is an acidity regulator and flavoring that lowers pH to add a tangy taste and stabilize products. It also inhibits spoilage microbes and is used to reduce pathogens on meats and in fermented foods, beverages, and pickles.

  4. What does lactic acid do for skin?

    As an alpha‑hydroxy acid, lactic acid gently exfoliates and increases skin hydration, helping smooth texture and brighten dullness. At higher strengths or low pH it can irritate sensitive skin.

  5. How to get rid of lactic acid?

    Your body naturally clears exercise-produced lactate quickly, so there’s no need to “flush” it. Staying hydrated and doing light activity can support normal clearance; lactic acid in foods (E270) doesn’t cause muscle lactate buildup.

  1. Is fumaric acid bad for you?

    No—at the small amounts used in foods it’s not considered harmful; very high intakes may irritate the stomach or teeth due to its acidity.

  2. Is fumaric acid safe in food?

    Yes; it’s an approved food acidulant (e.g., GRAS in the U.S.) and EFSA has found no safety concern at authorized uses and levels.

  3. Is fumaric acid vegan?

    Yes; it’s typically made synthetically or by microbial fermentation and does not require animal-derived ingredients.

  4. What is fumaric acid in food?

    An acidulant that adds tartness, controls pH, and functions as a slow-dissolving leavening acid—commonly used in beverages, confections, and tortillas to improve flavor and shelf life.

  5. What is fumaric acid made from?

    Commercially it’s produced by isomerizing maleic anhydride/maleic acid (petrochemical route) or by fermenting sugars with fungi such as Rhizopus; it also occurs naturally in small amounts in some plants and fungi.