Not 100% sure, though I’m leaning towards it actually being fortified (with perhaps a lower level being naturally occurring) given that the person on the verge of losing all their vegemite isn’t saying “wtf it’s naturally occurring” in response to “it’s not allowed to have added vitamin B”
Not 100% sure, though I’m leaning towards it actually being fortified (with perhaps a lower level being naturally occurring) given that the person on the verge of losing all their vegemite isn’t saying “wtf it’s naturally occurring” in response to “it’s not allowed to have added vitamin B”