Worried parents have claimed Nestle's new SMA milk formula has made their children "violently sick".

The company changed their recipe for its milk range in January but now a petition has been started to ban its Pro Formula milk.

It was set up by mother Catt Taylor who says a GP told her the milk was "poisoning her baby's system".

She claimed she had fed her daughter Alayah SMA Gold from birth formula as she did not like breastfeeding and there had never been an issue "until about a month ago when she quickly started to become ill".

Ms Taylor claimed that within two days of using the new formula her little girl became "limp, lifeless and had a rocketing temperature of 40C".

She said her baby was also "projectile vomiting", had a swelled up face, was suffering from diarrhoea and would "scream in pain" when she ate.

The young mother said at first doctors were unable to say what was wrong with Alayah and thought it might be a virus or gastroenteritis.

When tests came back negative, her GP asked her if she had recently changed Alayah's formula to see if she was reacting badly to a change in diet.

It was only then that she realised the ingredients in the SMA milk has changed, she says "without any warning".

She said: "A GP told me to stop giving her the milk immediately. To hear the words it's 'poisoning her system' is just unbelievable."

Ms Taylor said Alayah is now well again after switching her formula to another brand.

But other mothers have also complained the SMA milk was causing their babies to vomit and have diarrhoea.

The SMA website said its formula milk was relaunched as SMA Pro and now includes "non-digestible fibres" and omega-3 derived from fish oil.

Advice to parents if it was making their baby sick says: "Most babies will transition to the new formula without experiencing any issues.

"However, we do understand that some babies might be more sensitive to the changes in the formula and may take a short while to settle.

"If your baby is sick, or if you have any concerns you should speak to your GP, midwife or health visitor."

ITV News has approached Nestle for comment.