07 Jul 2021 --- UK food manufacturer Samworth Brothers is closing its sports nutrition business Sci-Mx Nutrition due to “several years” of loss-making. “The sports nutrition sector has changed dramatically over the last few years,” says Sci-Mx in a public statement. “We have concluded that the business is not at a scale where we can make it work. The levels of investment that would be needed to achieve this do not make good economic sense.”