Highly controversial, embryos of cloned animals are used to breed livestock, but this practice came under intense scrutiny during the summer when it emerged meat and milk from the offspring of cloned cows had reached UK shops.

But today the Advisory Committee on Novel Foods and Processes (ACNFP) said there is no evidence of any difference between cloned animal produce and conventionally-bred cattle produce.

Food Standards Agency Chief Scientist Andrew Wadge said: "In considering this hypothetical application, the ACNFP has confirmed that meat and milk from cloned cattle and their offspring shows no substantial difference to conventionally produced meat and milk and therefore is unlikely to present a food safety risk."

More evidence is still needed, said the committee, to show how rearing animals in different environments may affect the meat and milk.

The conclusion is that any potential differences between cloned animals and conventional animals was unlikely to exist beyond second generations.

Foodstuffs, including milk, produced from cloned animals have to pass safety evaluations and get approval under European law before they can be marketed.

EU negotiations

In December the Food Standards Association will discuss the outcome influencing Britain's negotiations on the issue in Europe.

The ACNFP opinion will be considered by the board, as will the recent European Commission proposal to ban meat and milk from clones and their offspring and any other developments, before they give ministers advice.

EU member stats will need to interpret the law on novel foods any changes in position may take some time.

A spokesman said: "It is for individual member states to interpret European law but obviously, we differ from the Commission on this, which is why we asked for clarity from Europe.

"I don't think we can put a time frame on this. I don't think it will be anything immediate."

More investigations needed

Two bulls born in the UK from embryos harvested from a cloned cow were slaughtered earlier this year, one of which "will have been eaten", while the other was prevented from entering the food chain.

The FSA said it had neither made any authorisations nor been asked to do so.

Anti-cloning campaigners said more investigations are needed to assess the long-term risks and ethical issues associated with the farming practice.

A Soil Association spokeswoman said: "There are many unanswered questions on the issue of cloning animals - both ethical and practical - and insufficient regulation.

"Not only does cloning have a negative impact on animal welfare, we also have no long-term evidence for the impacts on health."