The survey conducted by the Local Authority Coordinators of Regulatory Services (Lacors) reveals “shocking” levels of fat, salt, and calories in doner kebabs.

The study officers from 76 councils sampled the nutritional value of 494 kebabs and found that the worst kebab contained 346 per cent of a woman’s daily saturated fat intake, or half the weekly allowance.

It also contained 277 per cent of the daily-recommended salt intake for a woman and 1,990 calories.

An average kebab, without sauce, contained 148 per cent of an adult’s daily saturated fat allowance and 98 per cent of their recommended daily salt intake.

"The level of saturated fat and salt in some is a serious cause for concern," the Telegraph quoted Geoffrey Theobald, of Lacors as saying.