What is E367?
Calcium fumarate — a simple calcium salt of fumaric acid, used as an acidity regulator, related to a compound your body already produces naturally.
E367 (calcium fumarate) is made by combining calcium with fumaric acid, an acid produced inside every human cell as part of normal energy metabolism (the Krebs cycle). It's used as an acidity regulator in a small range of processed foods. It's permitted in Australia, New Zealand and the United States, though not in the EU, where only fumaric acid itself is authorised. Goodnessly rates it Safe.
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Read the FAQ →
What is calcium fumarate?
Calcium fumarate is made by combining calcium with fumaric acid, a compound produced naturally inside every cell as part of the Krebs cycle, the metabolic pathway responsible for generating cellular energy. Fumaric acid is also found naturally in some plants, including bolete mushrooms. Calcium fumarate is a straightforward derivative of this well-established compound.
What's it used for?
- Acidity regulator in a range of processed foods
- Buffering agent to stabilise pH
Where you'll find 367 on the shelf
A minor, functional ingredient in a small range of processed foods.
Is calcium fumarate safe? What the research says
Calcium fumarate is derived from fumaric acid, a compound the body already produces as part of normal metabolism, with a clean regulatory record.
| Region | Status | What this means |
|---|---|---|
| AU/NZ Australia & New Zealand (FSANZ) | Permitted | Permitted as an acidity regulator with no specific quantity restriction in most categories. |
| EU European Union (EFSA) | Not authorised | Not on the EU additives list. Only fumaric acid itself (E297) is authorised there, and only in set categories at fixed limits — the fumarate salts aren't included. |
| US United States (FDA) | Permitted | Cleared as a regulated food additive under 21 CFR 172.350, which covers fumaric acid and its calcium, magnesium, potassium and sodium salts, at no more than the amount needed for the intended effect. |
Fumaric acid is produced naturally inside every human cell as part of the Krebs cycle, the metabolic pathway responsible for generating cellular energy.
- No significant regulatory changes: calcium fumarate's approval status has remained stable, reflecting its long, low-controversy safety record.
This section is checked periodically rather than continuously — if you're reading this well after the date above, it's worth confirming nothing has changed before citing it.
Who this matters to
- No population group has a specific safety-based reason to limit E367 at typical food-additive levels
Goodnessly rates E367 Safe. It's derived from fumaric acid, a compound the body already produces naturally.
How to spot it on a label
E367 is usually declared clearly. Look out for:
- Calcium fumarate
- 367 or E367
- "Acidity regulator (367)" in the ingredients list
Related additives
Frequently asked questions
Is calcium fumarate the same as fumaric acid?
Closely related but not identical. Calcium fumarate is made by combining calcium with fumaric acid, producing a salt with similar acidity-regulating properties.
Is fumaric acid found naturally in the body?
Yes — fumaric acid is produced inside every cell as part of the Krebs cycle, the metabolic pathway responsible for generating cellular energy.
Does Goodnessly rate E367 as safe, caution, or avoid?
Goodnessly rates E367 (Calcium Fumarate) as Safe. It's derived from fumaric acid, a compound the body already produces naturally, with a long, uncontroversial safety record.
Is E367 allowed everywhere?
Not quite. It's permitted at GMP in Australia and New Zealand, and cleared in the US under 21 CFR 172.350. In the EU, though, only fumaric acid itself (E297) is authorised — the fumarate salts, including calcium fumarate, aren't on the list.
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