Additive guide
Is BHA bad? What the science actually says
By the HealthierCart team ·
What is BHA?
BHA (butylated hydroxyanisole) is a synthetic antioxidant preservative that keeps fats and oils from going rancid, protecting flavor and extending shelf life in processed and packaged foods.
| Also known as | Butylated hydroxyanisole, E320 |
|---|---|
| E-number | E320 |
| U.S. status | Approved / permitted by the U.S. FDA |
| EU status | Permitted in the EU |
| HealthierCart view | Limit intake |
| Commonly found in | Chips and snack foods, cereals, cured and processed meats, chewing gum, butter and shortening, and some packaged baked goods. |
So, is BHA bad for you?
The honest answer is 'limit it.' The U.S. NTP lists BHA as 'reasonably anticipated to be a human carcinogen' and IARC calls it 'possibly carcinogenic' (Group 2B) — but those hazard labels are largely based on high-dose animal studies, and EFSA set an acceptable daily intake on review. Typical dietary exposure is far below the doses that raised concern.
What regulators actually say
The U.S. National Toxicology Program lists BHA as 'reasonably anticipated to be a human carcinogen,' and IARC classifies it as possibly carcinogenic (Group 2B) — both largely on high-dose animal data. EFSA set an acceptable daily intake on review, and the FDA permits it as generally recognized as safe within limits.
Where you'll find it
Chips and snack foods, cereals, cured and processed meats, chewing gum, butter and shortening, and some packaged baked goods.
BHA: frequently asked questions
- Is BHA a carcinogen?
- It carries hazard classifications (NTP 'reasonably anticipated', IARC Group 2B) based mainly on high-dose rodent studies. That flags potential hazard, not confirmed human risk at the trace amounts used to preserve food. EFSA still set an acceptable daily intake.
- What is the difference between BHA and BHT?
- Both are synthetic antioxidant preservatives. BHA carries stronger carcinogenicity hazard classifications; BHT has more mixed animal findings and is generally considered lower concern. Both appear in the same kinds of processed foods.
- Should I avoid BHA?
- It is reasonable to limit it, especially since many products use alternatives like vitamin E (tocopherols). But occasional exposure at food levels is far below the doses that raised concern in studies.