I havent used it but I am comparing it to the Vega One I am using
Vega One GNC
Calories 135 200
Protein 15 25
Carbs 11 17
Sugar 2 4
Fiber 6 8
The GNC is fantastic as far as protein is concerned, you want to have a lot of carbs in your diet but it seems to me there is too much carbs and Sugar in it.
Vega One I would not advise to someone with a severe case of candida (too sweet) but with a mild case you will be able to tolerate that much carbs/sugar. Plus it also has probiotics and chlorella which are helpful to fight candida.
GNC has a hunger blocker (to make you thin) Vega One has digestive enzymes - to make you hungry and to help kill the candida in your bowels. They are opposite. I would advise Vega One or similar Green superfood equivalent.
Keep the carbs and Sugar low and the protein high.