Aldi has announced a series of changes to the core ingredients in its own-label products on sale in its US stores. 

The discount retailer is to remove partially hydrogenated oils (PHOs), certified synthetic colours and added MSGs from all its exclusive US brand food products. Some 90% of the lines carried at Aldi in the US are own label.

It said the move was part was part of its efforts "to expand store offerings and address customers' preferences and needs about particular ingredients in their food". 

Jason Hart, chief executive of Aldi in the US, said: "We are dedicated to the well-being of our customers by providing high quality groceries at the lowest possible prices and offering foods shoppers can feel good about serving their families." 

He added: "Our decision to remove these ingredients from all of our exclusive brand foods delivers on our ongoing commitment to meet the evolving preferences of our customers."

The process of removing the set list of ingredients from its products started in 2014 and customers will start to see the reformulated brand lines in-store by the end of 2015. 

It is the latest in a series of initiatives introduced by Aldi to keep its product range up to speed with the growing demand from consumers for a choice in the ingredients mix in retail products. 

The retailer has, for example, introduced its SimplyNature range, which is free from more than 125 ingredients, and a gluten-free line of products under the Aldi exclusive brand, LiveGfree.

It has also moved all nutritional information to the front label of all Aldi’s exclusive lines.

Aldi has also set up an "advisory council" made up of health professionals and dieticians to pick out products in its range that allow families to make healthy eating choices, but at affordable prices.

Sally Kuzemchak, dietician and a member of the Aldi Advisory Council, said: "I'm happy that Aldi is listening to people's concerns about synthetic dyes and eliminating them in all of their products."

Aldi said the ingredient changes will be promoted and explained to customers through its normal weekly advertising and in-store catalogue, but also through a dedicated social media campaign, including a new Aldi Simply Smarter Living blog.

Aldi operates 1,400 stores across 32 US states with an average customer base of 30 million.