There’s another yeast we’ve promoted on the forum called s. boulardii and it has been shown to have anti-candida characteristics where it feeds on the candida. The only negative aspect to boulardii is that you could potentially get a yeast infection if you consume it too much. A few members on the forum have tried boulardii with good success but its more of an experimental approach to fighting candida. If you have candida badly, the other yeasts shouldn’t have a huge impact on its numbers in general especially if you have an infestation of candida. You’re welcome to try out the nutritional yeast but it hasn’t really been promoted on this forum.
On a side note: I have some nutritional yeast in my standard process supplements and it hasn’t caused any problems.