"[We] get it to all of our wonderful social services organisations and charities who are feeding our vulnerable communities and our communities that suffer from food insecurity."
KiwiHarvest's website states that 40 per cent of New Zealanders experience low to moderate food security, and up to 305,000 Kiwi children are living in poverty.
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With so much edible food going to waste, and so many people going hungry, why couldn't New Zealand get the equation right? Mackay asked
"I guess there's many factors on both sides of the equation, whether it's surplus food or food insecurity, but this is what organisations like KiwiHarvest do. We are taking those food problems and making them solve each other."
Although this was "a wonderful solution," the numbers remained "staggering," Diamond said.
"In actual fact, the hundred thousand tonnes a year is primarily just out of the food industry and sector. It doesn't account for how much food each household wastes a year - and that figure's double that of the food industry."
There was growing awareness about food waste, especially from the Government, and KiwiHarvest was trying to make sure to promote this to solve the problem.
"We can take that food and we can use it for the benefit of other New Zealanders."
People could help out by donating food or money at the KiwiHarvest website.
"A good healthy meal three times a day," had a great social effect on the community, so every dollar and donation counted, Diamond said.
"When you're working with families and whanāu who suffer from food insecurity, one of their most urgent needs is either just to have shelter, or have enough food."
"When they have enough food they're able to make other decisions. They're able to focus other areas that they need support, because those most urgent needs have been taken care of."
Also in today's interview: Diamond talked about how KiwiHarvest had formed a partnership with Rabobank.