"What this has sort of flagged to us is that ... we're going to get left behind if don't start to take it a bit more seriously and look at how we can work better together," Thompson said.
She said New Zealand needed to have a constructive national "discussion" about how it could develop an alternative protein sector.
Global plant-based protein sales rose 17 per cent in 2018 and this was a significant new market opportunity for New Zealand food producers, she said.
"There are increasing numbers of people all around the world who have made the decision that they want to eat less meat and dairy and more plant-based proteins.
"This isn't necessarily about them becoming vegan, it's about a protein transition - a change in the balance of where some of their protein is coming from," she said.
While diversification into more plant-based foods needed to happen, it should not be seen as an attack on New Zealand's existing animal protein sector, Thompson said.
"There will always be strong demand for our New Zealand's animal protein products. Our pasture-based farming systems underpin the New Zealand primary sector and they are the envy of other meat and dairy producing nations."
- RNZ