All corrections
Substack March 18, 2026 at 03:57 AM

tbthealth.substack.com/p/is-modern-day-bread-even-food

2 corrections found

1
Claim
E41, guar gum
Correction

This additive code is wrong: guar gum is INS/E412, not E41.

Full reasoning

The article identifies guar gum as “E41”, but authoritative food-additive references list guar gum as INS 412 / E412.

The WHO/JECFA food additives database entry for guar gum states:

  • “GUAR GUM”
  • “INS 412”
  • “INS matches 412”

So the numbering in the post is incorrect by a missing digit. Readers trying to check the ingredient code would be misled, because E41 is not the standard additive code for guar gum; the standard code is E412.

1 source
2
Claim
the Irish Supreme Court ruled that bread served at American sandwich chain Subway could not in fact be defined as bread because of its high sugar content.
Correction

This overstates the ruling. The court did not say Subway’s product was not bread in general; it said it did not qualify as “bread” under a specific Irish VAT law definition for zero-rated staple foods.

Full reasoning

This sentence describes the 2020 Irish decision too broadly.

The legal issue in Bookfinders Ltd v. Revenue Commissioners was tax classification, not whether Subway literally sells something other than bread in the ordinary sense. Under Irish VAT law, a product only qualified as “bread” for the zero-percent VAT rate if ingredients like sugar or fat stayed below specified limits.

Authoritative summaries of the case explain that Subway’s bread fell outside the statutory definition of bread as a staple food under Irish tax law because its sugar content was too high. The Finance Act definition itself sets a limit of 2% sugar (and certain other ingredients) by weight of flour for the VAT-law definition of bread.

So the article’s wording is misleading because it turns a narrow tax-law ruling into a broad claim that Subway’s bread “could not in fact be defined as bread.” The court’s ruling was about eligibility for a tax exemption / zero rate, not a universal determination that Subway bread is not bread.

2 sources
Model: OPENAI_GPT_5 Prompt: v1.16.0