Modified Food Starch vs Citric Acid: which is worse?
Quick answer: Both score equally on our risk model. Modified Food Starch is allowed in the EU and allowed in the US; Citric Acid is allowed in the EU and allowed in the US.
| Property | Modified Food Starch | Citric Acid |
|---|---|---|
| EU status | Allowed | Allowed |
| US status | Allowed | Allowed |
| Risk level | low | low |
| Banned in | — | — |
| Restricted in | — | — |
| Category | additive | preservative |
| Where it hides | Campbell's Soup, Gerber Baby Food, Birds Eye Frozen Meals | Coca-Cola, Powerade, Sour Patch Kids |
What is Modified Food Starch?
Modified food starch is starch (derived from corn, wheat, potato, rice, or tapioca) that has been physically, enzymatically, or chemically treated to alter its properties such as thickening ability, heat stability, or freeze-thaw stability. The term 'modified' refers to chemical modification, not genetic modification. Dozens of specific modifications exist, each designated with E numbers E1400–E1450 in the EU.
What is Citric Acid?
Citric acid is a weak organic acid naturally occurring in citrus fruits. Commercial citric acid is produced almost entirely by fermentation of sugar substrates (typically molasses or corn syrup) using the mold Aspergillus niger. It is the most widely used food acidulant and preservative globally, also functioning as a chelating agent and flavor enhancer.
Documented risks
Modified Food Starch: Modified food starches are generally recognized as safe by the FDA and EFSA. Modified starches from wheat must be declared as allergens in the EU. Phosphorylated starch modifications (E1412, E1414) are permitted at specific maximum levels by EFSA, which noted no safety concerns at authorized levels in its 2017 re-evaluation. Concerns have been raised about the use of modified starch in infant foods — EFSA's Scientific Panel set conservative limits for infants. For healthy adults, dietary exposure via processed foods poses no identified risk.
Citric Acid: Generally recognized as safe. Excessive consumption can erode tooth enamel due to its acidic nature — dentists recommend rinsing with water after consuming highly citric drinks. A 2018 report in the journal BMJ Case Reports described a cluster of inflammatory reactions (joint pain, muscle weakness) in individuals who reported reactions specifically to industrially produced citric acid, hypothesizing residual Aspergillus proteins from the fermentation process as a potential cause. This remains a hypothesis without controlled clinical evidence, and regulatory agencies maintain its safety status.
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