Campina has pledged to plough significant investment into "health and wellness" products on the back of strong sales in 2007.

The Dutch dairy co-operative said its success with healthy products was the main reason for turnover rising 11% to €4bn. Its Optimel/Optiwell, Vifit and Milner products performed particularly well across Europe, it said. "In the wake of this we'll make substantial investments in the health and wellness concepts," said chief executive Kees Gielen.

Campina described 2007 as a "genuinely positive dairy year" in which prices for basic dairy products rose sharply on the back of rising global demand. However, it said it could not fully benefit from this as it was locked into long-term contracts and did not trade in bulk products but converted the milk into added-value lines.

In the UK sales of Yazoo were robust. However, UK figures were hit by a decline in sales at a major supermarket chain, which the company did not name.