Definition of «to keep this vegan»

"To keep this vegan" means that something is being done or prepared in a way that does not involve any animal products or by-products.

Now, I don't keep a vegan diet, nor am I gluten - free. (athoughtforfood.net)
I wanted to keep it vegan so didn't want to add an egg. (elanaspantry.com)
We have to help keep our vegan friendly companies in business, right? (veganosity.com)
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