Some sunflower lecithin is vegan, and some is not.
For some reason, many sunflower lecithins contain animal products like:
- Bovine cellulose
- Glycerine (which is sometimes vegan)
I’d recommend finding one that specifically says it’s vegan or vegetarian, and then double-checking the ingredients for any animal products like the ones above.
Lecithin is a fat that can be extracted from other sources as well.
Consider soy lecithin if you want an alternative, which is usually vegan.