Glanbia sells SlimFast brand to Heartland Food Products Group0 SHARESPosted: 18 September 2025 | |Glanbia has sold its SlimFast US brand to Heartland Food Products Group, as consumer demand shifts and GLP-1 drugs challenge legacy diet products. SlimFast products pictured on store shelves; the brand has been sold by Glanbia to Heartland Food Products Group amid rising competition from GLP-1 weight-loss drugs and shifting consumer nutrition trends. Credit: ShutterstockGlobal nutrition company Glanbia has announced the sale of its long-standing weight management brand SlimFast US to Heartland Food Products Group. Heartland Chairman and CEO Ted Gelov said the addition of SlimFast strengthens the company’s mission in the health and wellness space. Experts highlight that the rise of GLP-1 weight-loss drugs has accelerated the shift away from traditional diet products, challenging legacy brands like SlimFast to stay relevant.