Ingredient · Updated

Phosphoric Acid

Flagged in 10

Found in 10 productsSee all

What is Phosphoric Acid?

Phosphoric Acid is an inorganic acid that is primarily produced by reacting phosphate rock with sulfuric acid. It is a colorless and odorless liquid used in various industries.

In the food and beverage industry, phosphoric acid is commonly used as an acidity regulator and flavor enhancer in soft drinks, providing a tangy taste. The evidence on its health impact is mixed; while it is generally recognized as safe by food safety authorities, excessive consumption in sodas has been linked to lower bone density in some studies.

When you see phosphoric acid on a label, it is typically used to adjust the acidity and enhance flavors, especially in cola beverages.

Commonly found in: sodas, processed foods, cheese, baked goods, canned foods

What to watch

  • Phosphoric acid in sodas has been associated with lower bone mineral density.
  • Excessive intake can lead to tooth enamel erosion.
FDA

Phosphoric acid is approved by the FDA as a direct food additive and is generally recognized as safe (GRAS).

Research

There is mixed research on phosphoric acid, with some studies linking it to negative impacts on bone health, particularly in high-soda consumers.

Vegan

Phosphoric acid is not derived from animal sources and is generally considered vegan.

Sources: Overview of Food Ingredients, Additives & Colors · Review of Phosphoric Acid and Bone Health

Scout's take

Industrial acidulant that gives cola its signature tang. Independently associated with reduced bone mineral density and higher osteoporosis risk in long-term observational studies (Tucker et al. 2006); also one of the most enamel-erosive compounds in any common beverage (pH ≈ 2.5).

The case against

At very high chronic intake can affect calcium absorption, but at beverage levels this is not a concern.

from the analysis of Cadence RACE Energy Hydration Drink

May contribute to phosphate overload, affecting bone health and calcium balance.

from the analysis of Brisk Iced Tea

Excessive intake may lead to reduced bone density and dental erosion.

from the analysis of Log Cabin Original Syrup - 24 fl oz

The case for

Provides tartness and acts as a preservative.

from the analysis of Cadence RACE Energy Hydration Drink

More from Scout's analyses

Processed additive flagged under Scout's ingredient doctrine.

from the analysis of Isopure Low Carb Protein Drink Green Tea & Lemon

Phosphoric acid — bone-mineral concern with frequent intake.

from the analysis of Cadence RACE Energy Hydration Drink

Phosphoric acid is used to acidify beverages and enhance flavor. It is a synthetic additive that can contribute to phosphate overload, affecting bone health and calcium balance. Its use in beverages is linked to potential negative health impacts.

from the analysis of Brisk Iced Tea

All 10 products with Phosphoric Acid

Where Phosphoric Acid shows up

Higher-scoring picks without Phosphoric Acid

Products from the same categories whose analyzed ingredient list does not include Phosphoric Acid, scoring 80 or above.

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