NZ appetite suppressant pill Calocurb to launch here and in United States

A New Zealand-made diet pill is said to be a "breakthrough" in the war against obesity.

The key ingredient in Calocurb, a gel capsule taken an hour before meals, is a hop flower extract developed by Plant & Food Research, and registered as Amarasate.

Lab trials on human cells showed the hops extract activated the body's "stop eating signal", said Dr John Ingram, who led the research team from the Crown Research Institute.

There has been one clinical trial of the pill involving 19 men of "normal weight". For three days they were fed a standardised breakfast and then given either hops extract or a placebo before lunch.

The men who got the hops ate about 220 fewer calories each day, which is about the same as two pieces of toast.

Dr Ingram presented the results to the European Obesity Summit in Sweden in 2016 and has since been trying to get funding to conduct longer-term trials.

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