Basically, yes. But I’d add in a probiotic yogurt or similar (two drinks or pots of yogurt a day rather than one) to replenish the bacteria that normally keep candida in check.
Huel contains very little sugar and is unusually low GI, which is what makes it so suitable for people with diabetes. Candida thrives on sugar so any diet aimed at lowering the risk of candidiasis needs to be low in sugar - for people with diabetes thrush outbreaks are a sure sign that blood glucose is out of whack. Before Huel I was getting so many candida outbreaks that I had fluconazole and canesten cream on repeat prescription as my GP knew that I know what thrush looks and feels like. In the year since I started using Huel, I’ve had no problems at all with thrush, even though I add enough fruit or juice to a Huel meal to make the sugar content of the meal about 10g.