Apparently since last year Vitabrits is owned by Sanitarium, the same as Weet-Bix. It used to be uncle Tobys. I checked because the box no longer has uncle Tobys on it. It doesn't say Sanitarium either though. You have to check online who owns it.
I get the Vitabrits not the Weet-Bix. Weet-Bix contain vitamin powder, sugar and other additives. Vitabrits are just Wheat and salt.
I hope they don't stop making them or change the recipe.