Definitely. I cured myself of a chronic candida albicans infection that almost ruined my life by changes in diet and in taking vitamins and supplements.
You must get a book called Yeast Control In Seven Days. Also Prescription For Nutritional Healing did me wonders too.
You need to stop eating processed sugar! Use stevia (found in health food stores) to sweeten drinks and drink unsweetened mineral water, like perrier, instead of sweetened sodas.
Stop eating breads and starches! They turn into sugar in your system in short order. Cut them out-of your diet, and eat vegetables, way more vegetables. If you must have starch have brown rice.
You need essential fatty acids, found in fish oil. Take this daily, as well as garlic supplements.
Yeast needs moisture, sugar and agitation to thrive. Starve out the sugar. Also, your doctor can prescribe a simple pill that costs 8-15 dollars (diflucan) and it wipes out the yeast. However, it will regain entry to your body and overgrow again if you give it the same conditions.
You need to replenish the healthy-gut-bacteria: acidophilus. You can take it in pill form, or powder, or it can be commonly found in yoghurt (plain yoghurt sweetened with stevia is best!)
I finally stopped getting yeast infections and my mental clarity returned. But even so, if I drink an entire can of soda, it is so acidic that it kills the good bacteria that prevent yeast-overgrowth, and sugarifies my system, and I can feel one coming on (a yeast infection).