Global asset management firm The Carlyle Group has completed its $4bn acquisition of NBTY, which operates the Holland & Barrett chain.

The deal means global manufacturer and retailer of nutritional supplements NBTY’s stockholders are entitled to $55 in cash for each share. As a result of the merger, NBTY will no longer be listed on the New York Stock Exchange.

NBTY also operates Julian Graves, Nature’s Way and GNC, totalling over 1,000 stores with Holland & Barrett.