Nitrite levels found in UK ham prompt safety debate

A UK study tested 21 supermarket pork products for nitrites and found high levels in Wiltshire ham.

UK ham nitrite levels spark calls to remove preservatives from processed meats

A UK study tested 21 pork products from Tesco, M&S and Morrisons for nitrites, common curing agents linked to cancer. Nitrites help preserve meat and prevent harmful bacteria, but health experts warn they carry cancer risks. The Wiltshire ham from Tesco recorded the highest level at 33 mg/kg, about 11 times the level in Tesco cooked ham and nearly four times the level in some bacon. Other high readings came from products sold by M&S, Sainsbury’s and Morrisons, while Asda’s ham showed a lower 8 mg/kg. All 21 products tested contained nitrites, and the study was funded by the Coalition Against Nitrites.

The findings spotlight a policy tension between keeping meat safe with additives and protecting long term health. Industry argues nitrites extend shelf life and prevent bacteria, while researchers push for safer alternatives or nitrite-free products. Regulators in the UK defend the practice as within limits, yet the study presses for clearer labeling and a reassessment of how much nitrite is acceptable in everyday foods. The debate mirrors broader questions about how to balance taste, cost and health in a busy food system.

Highlights

Safer choices require clear science and clearer options from shops.